I wasn't sure about the touchscreen-and-stylus controls but the system works well, although it all feels a little fragile and I'm concerned I may break things with overenthusiastic Guitar Heroics.
I even went out at lunchtime and bought MOAR GAMES to feed this exciting new addiction. I got Elite Beat Agents on the recommendation of almost everybody and Quantum of Solace, marked at £9.97 in Currys with a sticker on the back that said 'NON-PRISTINE PRODUCT'. It subsequently came up at the till as £7.48, which was nice.
So, that's my weekend sorted. What's everyone else up to?