We can now name the current VM using the service protocol.

runtime/vm/service/service.md

 # Dart VM Service Protocol 3.0
 
 > Please post feedback to the [observatory-discuss group][discuss-list]
 
 This document describes of _version 3.0_ of the Dart VM Service Protocol. This
 protocol is used to communicate with a running Dart Virtual Machine.
 
 To use the Service Protocol, start the VM with the *--observe* flag.
 The VM will start a webserver which services protocol requests via WebSocket.
 It is possible to make HTTP (non-WebSocket) requests,
@@ skipping 20 matching lines @@
         - [evaluateInFrame](#evaluateinframe)
         - [getFlagList](#getflaglist)
         - [getIsolate](#getisolate)
         - [getObject](#getobject)
         - [getStack](#getstack)
         - [getVersion](#getversion)
         - [getVM](#getvm)
         - [pause](#pause)
         - [removeBreakpoint](#removebreakpoint)
         - [resume](#resume)
+        - [setLibraryDebuggable](#setlibrarydebuggable)
         - [setName](#setname)
-        - [setLibraryDebuggable](#setlibrarydebuggable)
+        - [setVMName](#setvmname)
         - [streamCancel](#streamcancel)
         - [streamListen](#streamlisten)
 - [Public Types](#public-types)
         - [BoundField](#boundfield)
         - [BoundVariable](#boundvariable)
         - [Breakpoint](#breakpoint)
         - [Class](#class)
         - [ClassList](#classlist)
         - [Code](#code)
         - [CodeKind](#codekind)
@@ skipping 563 matching lines @@
 single-stepping to use.
 
 step | meaning
 ---- | -------
 Into | Single step, entering function calls
 Over | Single step, skipping over function calls
 Out | Single step until the current function exits
 
 See [Success](#success), [StepOption](#StepOption).
 
+### setLibraryDebuggable
+
+```
+Success setLibraryDebuggable(string isolateId,
+                             string libraryId,
+                             bool isDebuggable)
+```
+
+The _setLibraryDebuggable_ RPC is used to enable or disable whether
+breakpoints and stepping work for a given library.
+
+See [Success](#success).
+
 ### setName
 
 ```
 Success setName(string isolateId,
                 string name)
 ```
 
 The _setName_ RPC is used to change the debugging name for an isolate.
 
 See [Success](#success).
 
-### setLibraryDebuggable
+### setVMName
 
 ```
-Success setLibraryDebuggable(string isolateId,
-                             string libraryId,
-                             bool isDebuggable)
+Success setVMName(string name)
 ```
 
-The _setLibraryDebuggable_ RPC is used to enable or disable whether
-breakpoints and stepping work for a given library.
+The _setVMName_ RPC is used to change the debugging name for the vm.
 
 See [Success](#success).
 
 ### streamCancel
 
 ```
 Success streamCancel(string streamId)
 ```
 
 The _streamCancel_ RPC cancels a stream subscription in the VM.
@@ skipping 12 matching lines @@
 The _streamListen_ RPC subscribes to a stream in the VM. Once
 subscribed, the client will begin receiving events from the stream.
 
 If the client is not subscribed to the stream, the _103_ (Stream already
 subscribed) error code is returned.
 
 The _streamId_ parameter may have the following published values:
 
 streamId | event types provided
 -------- | -----------
+VM | VMUpdate
 Isolate | IsolateStart, IsolateRunnable, IsolateExit, IsolateUpdate
 Debug | PauseStart, PauseExit, PauseBreakpoint, PauseInterrupted, PauseException, Resume, BreakpointAdded, BreakpointResolved, BreakpointRemoved, Inspect
 GC | GC
 
 Additionally, some embedders provide the _Stdout_ and _Stderr_
 streams.  These streams allow the client to subscribe to writes to
 stdout and stderr.
 
 streamId | event types provided
 -------- | -----------
@@ skipping 331 matching lines @@
 ```
 
 ### Event
 
 ```
 class Event extends Response {
   // What kind of event is this?
   EventKind kind;
 
   // The isolate with which this event is associated.
-  @Isolate isolate;
+  //
+  // This is provided for all event kinds except for:
+  //   VMUpdate
+  @Isolate isolate [optional];
+
+  // The vm with which this event is associated.
+  //
+  // This is provided for the event kind:
+  //   VMUpdate
+  @VM vm [optional];
 
   // The timestamp (in milliseconds since the epoch) associated with this event.
   // For some isolate pause events, the timestamp is from when the isolate was
   // paused. For other events, the timestamp is from when the event was created.
   int timestamp;
 
   // The breakpoint which was added, removed, or resolved.
   //
   // This is provided for the event kinds:
   //   PauseBreakpoint
@@ skipping 1099 matching lines @@
   @Isolate[] isolates;
 }
 ```
 
 ## Revision History
 
 version | comments
 ------- | --------
 1.0 | initial revision
 2.0 | Describe protocol version 2.0.
-3.0 | Describe protocol version 3.0.  Added UnresolvedSourceLocation.  Added Sentinel return to getIsolate.  Add AddedBreakpointWithScriptUri.  Removed Isolate.entry. The type of VM.pid was changed from string to int.
+3.0 | Describe protocol version 3.0.  Added UnresolvedSourceLocation.  Added Sentinel return to getIsolate.  Add AddedBreakpointWithScriptUri.  Removed Isolate.entry. The type of VM.pid was changed from string to int.  Added VMUpdate events.
 
 
 [discuss-list]: https://groups.google.com/a/dartlang.org/forum/#!forum/observatory-discuss