Engadget has gotten a tip off that HTC has announced the availability of Android 2.1 upgrade for HTC Hero. This is great news but it appears to be only available for Taiwan. The Taiwan site of HTC’s support page explains that the upgrade will come to HTC Hero Users as an Over The Air download notification. This is not found on the South East Asia version.
Users are advised to use either WiFi or unlimited 3G data plan to download the upgrade. You can view the English translation here.