Yup.
Just got my phone working now, had to wait for a new sim card to fully experience the benefits
So far I've got 3 games with achievements on it.
Flight Control
Flowerz (Currently a freebie! And with achievable cheevo's)
Sims 3
Re: Flowerz, its really addictive, in a similar way to Hexic HD was so addictive, but unlike Hexic, all the cheevo's look to all be achievable by the masses. Some might take some grinding, a couple will take a bit of mental effort. But in my first game I got level 16 (2 of the cheevo's require getting to level 20/scoring 9000 or more points) and unlocked 6 achievements!
I'd love to see an XBLA version of this on the 360!