A new ABI Research paper is forecasting $100 billion to be made from GPS-enabled handsets, like the BlackBerry 8310, in 2012. In terms of units, that translates to 240 million mobile sales next year to 550 million in four years. Now, I’ve gone on the record for being pro-GPS and all, but Wi-Fi still seems like the feature of choice for a lot of people. Manufacturers are going to be in a tough position where, in an attempt to keep costs low and their handsets slim, they’ll need to be picky about what they would rather have under the hood, and ABI seems to think that many will go with GPS. Which are you guys siding with?