We do a lot of debating around here about which platforms and device makers are best. But one thing we can’t argue about is which is most popular: it’s BlackBerry by a mile. Going by just-released figures from an IDC report, RIM more than doubled the Fruit Company for United States smartphone sales in the first three months of 2008. Also, Americans hate Nokia.

Percentage of U.S. Smartphone Sales, Q1 2008

There isn’t a breakdown by OS, so who knows how many of those Palms were Treos running Windows Mobile — but Palm’s market share jumped by 70% over last quarter and their only new release was the Centro running Palm OS. Samsung seems to have gotten a boost from the Blackjack II, while the MOTO Q series is struggling. And all of HTC’s assorted fabulous devices? 4.1% of the market. Unless I’m forgetting some models, if we guesstimate a 20% market share for Windows Mobile, maybe a quarter of those devices have the touchscreens all of us here at JAMM love.

(graph and any typos/goofs in it are mine)