Hmmm - the Open Watcom "forum" is a lot less active than PellesC ( although the OW C compiler is better in terms of reliability IMO ). I guess C is "not very sexy" anymore - still a bit more than Assembly, though.
Two particular things I like about OW:
1. It's open source and cross platform
2. It also supports C++ (still much work needed). If I'm not mistaken, their STL implementation is still incomplete.
BTW, where can I found recent binary built?
Their latest built is dated June 2010.