Hot on HuffPost Tech:  See More Stories Engadget for the iPhone:
download the app now AOL Tech  Location Battle, Round 2:
Foursquare and Gowalla both update iPhone apps!  In this corner,
with a big head start, a huge userbase, and tons of features,
it's ... Foursquare! In this corner, with millions of dollars in
funding and a great-looking new design ... Gowalla!  By now,
most people know that Gowalla and Foursquare have been going
blow-for-blow in the location-based social gaming fight. Despite
entries from Google, Yelp, and (soon) Facebook, these two
services have the strongest iPhone apps out there right now. But
if you're only going to sign up for one, which one should you
pick?  Both Gowalla and Foursquare have their plusses and
minuses, so read on for a comparison of their new iPhone apps
(which both updated on Tuesday ... ooh, drama!) and decide for
yourself.   Although Gowalla is the (relatively) new kid on the
block, it's actually more fun than Foursquare in a lot of ways.
The design is gorgeous, and