Maemo is dead in part because we've allowed it to die. If N900 owners flooded Nokia with emails and phone calls about Flash 10.1 (we can't call or email Adobe directly without having to pay $39), each with exactly the same message we could convince them to do it. Microsoft was going to drop support for XP but after being flooded with calls and emails have continued support twice now. Nokia responded to being flooded with complaints about a lack of support for the 770 (the following cut and pasted directly from http://en.wikipedia.org/wiki/Maemo September 15, 2010, 8:12PM):
"OS2007 ran only on the N800 and Nokia initially had no plans to release it for the 770; however feedback from disgruntled 770 owners[58] led Nokia to release an unsupported hybrid of OS2006 and OS2007, dubbed Internet Tablet OS 2007 Hacker Edition, in February 2007.[59] OS2007HE combined the binary parts of OS2006 with most of the updated libraries and user-space applications of OS2007."

Nokia would bend to pressure if only we were willing to put in the effort. If all N900 users (or as many as is possible by the use of this website) sent an email about the clear need for a version of Flash 10.1 (make sure to include your IMEI in the message to validate your position) they just might get to it. Both sending an email and flooding them with phone calls would very likely get the job done. We CAN have Flash 10.1 for our N900's, we just need to put a fire under Nokia's butt.
A second tactic (one not to use unless Nokia still fails to respond) would be to post the fact that Nokia has abandoned a $500 flagship device which (for many of us) is still under warranty. Nokia would try and protect their image rather than risk losing future sales.

The change to MeeGo cannot be used as an excuse by Nokia because they are still producing N900's and like most of their flagship devices the Meego device will be months away from the release date they initially put forward (how late was the N900?).Nokia would bend to pressure if only we were willing to put in the effort.