All existing BETA testers will be notified of new versions when they are released. The E-Mail I mention above is the confirmation of "being a BETA tester" for those people on phase 3 invites.
The next release is due within the next couple of days which is why I have not yet sent out the links to the new testers (seems a little pointless when the release will change so shortly afterwards!)
The release will only initially affect the Windows. NET client however the other clients may well be updated later. Some new methods are being added to the web service so all clients will be able to use them including anyone writing their own.
Rough aim for a public release is second week in May although as usual this is subject to change due to higher priority work.
Systems Development
Zen Internet Ltd