let me state this bluntly, in the hope that nokia will see this:

if they don't enable commercial games to be developed for and sold on the n900 then they are unmitigated idiots.

they have a near identical hardware platform to the 3GS, which along with its siblings has a huge number of really good commercial games.
if there is a mechanism that allows it then those same developers would happily port their games to other similar platforms, if that means more sales.

nokia MUST have a solution to this.