A bit of a newbie question here as I've not done UNIX / Linux builds in a quite a while ...
Do most Linux distributions these days
adhere to POSIX - well, at least specifically
SOHO? I'm asking generally, from the 10,000 foot view, without drilling into details yet - unless there are real issues, of course!
Do you all have a listing here of your favorite development tools?
thanks much.
Scruf
PS - I've scanned a fair number of posts here and am very impressed with the level of support everyone gives!

The programming facilities on most Linux distributions are a superset of POSIX. And yes, nearly every relevant thing in Linux dists, from the kernel up, are POSIX compliant. Since I like to read off my favorite programs, I gladly honor your other requests:
vim and jEdit are good coding editors, I think. Perl and Python are my favorite programming languages. For UI design, I like Qt Designer the most so far. Subversion is the best revision system I have used so far.
Etc....