So I picked up a 512 shuffle (for the gym) and I was wondering why Apple didn't put some sort of grooves or grip on the slider, it is not easy to turn off the machine. It's also sad that I cannot take music from my PB after I have loaded music from my PM. I have to erase the playlist just to get a couple songs added from my PB playlist. That's a lame "anti-theft" Apple move. Anyway around this "anti-theft"? I am also considering carving grips on the slider. I know a thirdparty will make an adhesive grip for it soon... Anyway, I guess the shuffle is O-K for now. It will take some getting used to, if I don't lose it in my pocket first! Cheers.