For the most part, I like the new iPhone/iPod app store: There are a lot of applications on there that could turn out to be very useful.
Others however are kind of weird, such as "hold on!":
"Compete to see how long you can hold the button!" -- riiight, so how did this end up in the productivity section exactly? Ah: "Develop your perseverance and improve your concentration skills to make you more productive!"
Well, at least it's free ;)