We all wanted one. Many of us got one. Some of us wish we hadn’t.

Whatever your opinion of Apple’s iPhone, it was undoubtedly 2007’s Gadget of the Year. So much so that Apple’s competitors are once again playing catch-up. Which brings us to the inevitable battle between the iPhone and the Blackberry, and the ensuing business prop bets.

We learned Wednesday that Research in Motion is working on a Blackberry with a touchscreen, apparently to be released in the first half of the year. Will they also release a device called “Teal” or “Semillion” as rumored? How about a G3-compatible device? Betting is open for both.

Apple won’t sit still, of course. The MacWorld Expo is Jan. 15, and iPhone users are praying for new developments, including a G3 phone, increased storage and a price cut. You can wager on all three, as well as the long-awaited introduction of the Beatles catalog to iTunes.

Bet on some financial props here.