For the record. This is where Pocket Weather (PW) with Weather Console lives:
http://www.sbsh.net/product.php?id=32
The Weather Console (stand alone product) works on my TP2, but you have to start it as a program. I guess you could start it and leave it run in the background. I saved all my settings from my 6800 and they installed fine... 4 locations and about 7 radars.
The Pocket Weather was the Home Screen Plug-in now clobbered by HTC Sense.
The people who work on this are pretty dedicated (crazy) and there is an active Beta group that I used to follow that became a serious time sink.... which way do you like the wind arrows to point?
Anyway, I am running V2.3.0 (4444). Licensed, not free...
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Sprint: G1000, HTC-6600, 6800, TP2 now Optimus S with Stock Android 2.2.2.