I was experimenting with version 1.0.1f, and -- first of all -- congratulations on some well thought-out improvements. In particular,
I think the fact that 1.0.1 can now coexist with other versions of the IDE (e.g., 0023) without each arguing over the config files each time one is a major improvement in usablity.
I like the avrdude "fixer" wrapper -- but! I seem to have trouble with this and USBAsp (which may be because the USBAsp driver doesn't show up as a Com port). Running version 5.10 of avrdude directly from the command line is a work around (just copy and paste the verbose uploading command line info into a cmd.exe box works fine), but perhpas this is something that is not just affecting my setup (Win XP -- I haven't tried it yet on a later version of Windows).
Anyway, I bought you a Pepsi. 
Well done.