Paul Webster announced today the availability of Eclipse e4 M5.
The e4 SDK zips and and the update site is available from:
http://download.eclipse.org/e4/downloads/drops/S-1.0M5-201004111600/
The main highlights are improved XWT functionality and a significant improved compatibility layer for existing Eclipse 3.x plugins. Also the workbench model editor of Tom Schindl has been included in this release.
To see the full New and noteworthy:
http://download.eclipse.org/e4/downloads/drops/S-1.0M5-201004111600/e4-news-M5.html
For me this is really nice as I can use M5 tomorrow in my Eclipse e4 presentation in San Fransicso.

Hi Lars,
Congratulations, I will enjoy your website.
If you were involved in a startup that is building a product based on the RCP – at what point would you start developing for e4?
Cheers
@mwg This depends entirely on your risk taking williness. I’m porting some of my apps to e4 already.
Unfortunately, bugs which I’ve opened for XWT, were not fixed in M5.
I am little confused. whats difference on e4 and Helios ? Are changes form e4 are merged back to Helios ?
Got it. e4 is sort of re write.
@Jigar: Some of the changes in e4 are merged back to 3.6, e.g. the flexible resources started in e4 and was merged back to 3.6.