Hiptop3 did some digging around on whois databases and discovered three new domains registered by T-Mobile. They are, in random order, sidekicklx.com, sidekickle.com, and sidekickslide.com. T-Mobile's already rolled out Sidekick Limited Editions for the Sidekick 3, but we haven't heard much about any phones properly dubbed the LX, LE or Slide.

Sidekick LX and LE [Hiptop3 via Sidekick Slide]