As rumored, Valve's bringing its digital distribution gaming portal to televisions today with Steam "Big Picture Mode." Kotaku confirms the news this morning that the TV-friendly version of Steam will launch "later today," alongside releasing a slurry of screenshots and impressions. Beyond what we already know about the service -- it's the full Steam we already know and love, albeit with controller-based input -- a variety of new details abound. A built-in web browser, for one, and a new form of text input for controllers which seems to massively trump the usualy QWERTY setup. The entire store can is apparently navigable via controller (though mouse and keyboard
