In the above screenshot of this help page, T-mobile is kindly helping visitors figure out how to navigate through their Sidekick LX’s menus to determine how much memory is available for pictures and videos. Thing is, the Sidekick LX doesn’t support videos at this point. Nor does the Sidekick Slide, which now has a similar mention of video on its help page.
While it could well be a mistake, video recording, playback, and messaging are oft-requested features of the Sidekick/Hiptop community, and the device does have over-the-air update support. With video features being pretty much a standard thing at this point and the list of comparable devices growing rapidly, it’d be crazy for Danger not to do everything in their power to add support.