Is there a root for the lumia 900 yet? Or is anybody working on one? I would like the ability to add flash and the added functionality rooting gives.
At the moment you can't root the Lumia 900. The first custom ROMs for Lumia 710 and 800 were released some weeks ago, so maybe soon there'll be one for the Lumia 900.
A good place for more information is here: http://forum.xda-developers.com/forumdisplay.php?f=1501