Why Nokia does not support OS upgrades (not meaning OS patches) on existing devices, and keep the old "If you want new OS, buy the new Hardware" strategy. I know this mean more revenue but obviously last 2-3 years cell phone market is changed. More people will leave after they realize their 5 month old device is not new anymore. Developers are getting confused too. While they are getting used to this OS, with available libraries, suddenly new OS with different support libraries comes. Should they take the risk to keep development on old OS?

Stability and consistency is the key in software world. But Nokia like to keep releasing demo OS on new shiny devices.

PS. I ordered N900 5 days ago, still waiting the package. I am not a hater but thats how I see.