It's truly remarkable to see almost every trace of a successful, well-established Valley start-up's work wiped out in the span of 24 hours, but here we are: T-Mobile's discontinuing the Sidekick line as of tomorrow, July 2, which effectively means that the Sidekick LX 2009 will no longer be available. As a refresher, the latest Sidekick LX was the last product holistically engineered by Danger as it got shoehorned into Microsoft -- square peg in a round hole, as it were -- before repurposing the team to work on the just-killed Kin line. In a way, it's a miracle that the LX ever went back on sale following the
