Good choices, the ones I've tried anyhow. Drop7 is indeed phenomenally addictive; Real Racing looks like a good Xbox game; Rolando uses the phones capabilities to their best; and Peggle is good fun too.
Ones they missed out? Well I really rate Scrabble, except when I lose. Sway is an inventive little platformer, Trace is a superb idea that could be redone and made great (you essentially draw the levels with your finger) and Modern Combat: Sandstorm is like a budget version of COD but very slick and decent indeed. Wolfenstein still stands up very well, and the revamped Monkey Island is superb.
Got any good ones of late?