For a company with as rich of a reputation for landscape QWERTY sliders as HTC has, you'd think they'd be tripping over themselves to release a truly high-end Android phone with a keyboard, but not so much -- the closest they've come so far would be the midrange myTouch 3G Slide, and that puppy ain't even out yet. We broke the news last night about three seemingly new names for upcoming HTC devices -- Vision, LED, and Glacier -- and Dutch site Tweakers.net is now reporting on a user agent profile for the Vision that lists the device featuring that my