We're past mid-March and rapidly approaching the early Q2 launch estimates for the Android 2.1 update for HTC's Hero. Now Engadget Chinese has tipped us to an official HTC release date issued on Plurk (a very popular, Twitter-like social service used locally) in HTC's home country of Taiwan: April 26th. So we should see the update go hot globally, with the latest version of the Sense UI in tow, at about the same time. You know, if you haven't grown tired of waiting and already hacked it in