8 of 10
BACKNEXT
Rimshot
Rimshot
Price: $0.99
Developer: Sprikit
What it does: Download this app to play a "badum" or "tssss" sound effect the next time you hear a bad joke. But know that using cell phone software to mock someone else's wit could backfire.


NEXT: Sim Stapler
Last updated September 23 2008: 5:20 PM ET
7 cool new smartphones Once reserved for business executives, smartphones today are thinner, sleeker and available in colors like pink and aquamarine. More
What's everyone yelping about? Or is it digging? Or ninging? Zyng-ing? A rundown of some Web 2.0 startups getting a lot of buzz. More
Top 10 luxury rides For those who want the best of the best, here they are. Plus 20 more options to consider. More