Here is some pre-release information MacOSXRumors has obtained from three Mac developers.
Postino, the recently released RSS reader for Mac from Coladia, should be updated this week. The major features of this update will be the possibility to switch between two new view layouts as well as a built-in media player for direct podcast / videocast playback. It will run in both PowerPC and Intel-based Macs.
CSOdessa is planning to announce a major release of its professionnal diagramming tool, ConceptDraw 6.0. This new version will feature a spellchecker, export to svg and many enhancements to its objects libraries. ConceptDraw 6.0 is probably coming this week or the next.
We also obtained a few information on OD4Contact, a contact management utility from Objective Decision. The next major release (version 3.0) will be renamed "Contactizer" and will mainly bring a built-in calendar (iCal style), collaborative features for all modules as well as performance improvements and bug fixes. This major release is coming in a few weeks and we can expect a public-bêta very shortly.
If you're developing software or hardware for Mac, don't hesitate to send us hints on your forthcoming products. As for official press releases, you can post them on our dedicated forum (MacCulture Forums | Bêta).

Delicious
Reddit
Google
Yahoo
Technorati
MacScoop RSS