I unlocked Gmail 2.3.5. Pure messenger widget can read Gmail 2.3.5 (modded) if you follow 'solution 3' ... http://bit.ly/ph4T0a

Pure calendar widget is now scrollable with 'LauncherPro' et 'ADW Launcher'
http://koxx3.wordpress.com/2010/06/26/pure-calend...

I have the same visibility problem with one of my applications : Pure messenger widget.
Impossible to find it with market search... but it works by QR code ...
A Market bug tracker would be really great, I agree, there is too much problem with Google Market.
When they are huge, Google react, if not, they pass...
The list is long:
- invalid credit card,
- invalid curency (some credit cards cannot be charged with euros, so the purchase is blocked by Google without any information for the user)
- invisibility of copy protected apps with custom ROM (or even Froyo),
- no web search,
- no possibility for devs to answer market comments ...
and now, fully invisible apps.

Selling apps is a job for some devs (like me), download drops costs A LOT for those devs !

I think a good policy would be 1 year support on new ROMS (so 1 or 2 updates)

As usual, Google Copy Protection for Android applications is a part of the problem.
Pure calendar, as copy protected app, is not visible with Froyo...
This copy protection is really faulty. Google needs to improve it.

For calendar and tasks, there is also 'Pure calendar widget' which is beautiful and you can customize it :)