So Sprint just published an official fact sheet for a U301 USB modem with support for both WiMAX and EV-DO — it’s not accompanied by any press release or product page on Sprint’s online store, but we can only assume this means that a release is around the corner. Of course, the dual-mode capability alone doesn’t set it apart — the carrier’s existing U300 model already handles those duties with aplomb — but what seemingly sets the U301 apart is its support for Mac OS. We’d just as soon they’d release drivers for the U300, but failing that, alright, fine, we’ll take a new modem