I assume that if u want to do this you know how it works so i'm not going into details too much.
- smali backsmali classes.dex in HtcClockWidget.apk or decompile with dependencies...
- look up for the file HtcDigitalClock42View.smali in \com\htc\WeatherClockWidget
- search for these lines:
const-string v5, "clockwidget_flip" const/4 v6, 0x1
const-string v5, "clockwidget_flip" const/4 v6, 0x0
this is what i have done so far... a nice transparent clock... without the flip