It's been a long time in the making but it would appear that today is the day!!!
HTC has announced via it's Chinese Pluck account the following statement, roughly translated via Google:
On June 4, 2010 to open up the wireless software update, the main update function as follows: Android 2.1 operating system upgrade!
System will continue to send updates prompt, when you receive a system prompt as long as you can by clicking Download or wireless network connection 3G/GPRS way to complete your phone system updates. Note: We recommend you to choose to have free Wi-Fi environment, download the update. If you are currently using 3G network, the download may have to pay the additional cost carriers, please make sure to have unlimited Internet access rates apply for rentals before use.
We will have to wait and see how long the OTA takes to hit Europe but at least it would appear that the roll out will start today in Asia... good news for the huge amount of patient HTC Hero owners!!!!!!
Via HTC Source
I've just taken this from the HTC's Taiwan site
Great news!!! I'm sure we'll have it very soon
Here are some screenshots courtesy of nickppl