Sony Ericsson’s flagship Android smartphone, the Xperia X10, has been plagued by laggy performance since we first laid eyes on it, but that won’t always be the case; the company has confirmed repeatedly that upgrades (including a newer Android OS version) will come. However, it now seems that multitouch is not in the cards. “There’s no multitouch in X10 – and I also can confirm that it’s not only related to [software] but also to [hardware],” said product manager Rikard Skogberg at the official company blog. If true, that means the X10 won’t get multitouch even when rooted, much less a Nexus One or Milestone-like level of native, official multitouch support. But remember, Sony Ericsson has fancy UI quirks of its own — though you may never pinch-to-zoom on an X10, at least you can enjoy reticulating Splines.

[Thanks, Bj