According to @JW, a.k.a., Josh Williams, founder and CEO of Gowalla, a location based travel game similar to FourSquare, a web based version of the application/game is coming to the BlackBerry.
Earlier today Josh Williams tweeted, “Oh wow. I just checked in from a BlackBerry Bold. BB users are going to be happy about this update to Mobile Web when it rolls.”
Gowalla is also working on a web client for Android, however, the version will have the benefit of HTML 5. It will be interesting to see what Gowalla can pull of in the BlackBerry Browser.