Google Voice is now available for everyone (provided you have a U.S. phone number)

The Foursquare-Google Maps mashup FourWhere has just added support for Gowalla and Yelp. The data from the three services is then displayed on a Google Map. While this in and of itself could be helpful and cool — especially for finding additional information or reviews about a location — Sysomos (the company that created FourWhere) has also used intelligent matching to combine similar venues

Digg’s much anticipated native application for iPhone is set to make its debut tomorrow, Mashable has learned. We’ve obtained a few screenshots, which you can check out below.

AT&T may have lost the battle, but the war is not over. Of course we’re talking about all the hubbub over Verizon’s Map for That ads , which paint AT&T’s 3G network as inferior to Verizon’s. Verizon’s holiday ads stirred the pot even more, inflaming AT&T to file a lawsuit , which, as we found out earlier today, was not a successful endeavor .

After some speculations earlier today , Sprint announced that Palm Pre, the smartphone we’re hoping to be just like iPhone, only better, will arrive in stores on June 6 this year . From the press release: “Palm Pre will be available nationwide on June 6 in Sprint stores, Best Buy, Radio Shack, select Wal-Mart stores and online at Sprint.com for $199.99 with a two-year service agreement and after a $100 mail-in rebate.” So, there you have it; if you were saving money for a brand new iPhone (which is still a rumor at this point), now you have just a little bit more of a choice on how to spend your hard-earned dough. That beautiful Touchstone charging dock, however, will be available separately for $49.99, so count that in, too, if you really want to be the coolest kid on the block.

Wolfram Alpha is not a search engine .

Live video is a heavily competitive and booming market, with Ustream , Justin.tv , Stickam , and Mogulus being some of the major players in the space. Mogulus, launched in 2007, focuses on higher-end broadcasts, which it calls Internet television, although any user can launch a Mogulus channel. The name choice of Mogulus, however, has always been perplexing and doesn’t really describe Mogulus’s live video technology