One request I do have to the OP: Could you please change the language about "3rd party apps", or at least note that when you say that phrase you are talking mainly about free apps? Most people see the phrase "3rd party apps" and are conditioned to think they are apps they would need to pay something to get.

For example, fMMS is a free app that anyone can install from extras-testing (hopefully soon in extras). Calling it a 3rd party app, which technically correct, could make people just looking into the N900 think they have to pay for an app to do MMS.