We had previously posted some still shots of roboPrint for Windows Phone 7 and now that the app has moved to beta there’s video of it available. To remind you, roboPrint lets you print from your Windows Phone 7 device and one of the great features you can see in the video is connecting to a Gmail account, downloading an attachment and printing it. They describe the app as":
A full featured printing application that will allow users to print from 3G or WiFi to any network connected printer, anywhere in the world. Print your emails, web pages, documents, whatever, wherever.
You can see it in action and realize how valuable of a tool this can be for wireless printing wherever you go.
I’m not sure if MS has a Bluetooth printing profile for WP7, but I don’t think it matters much anymore.