Embedded Linux development tools

I read a number of articles about embedded Linux development tools. Some claimed that these tools do not exist, yet another one tried to convince everybody that embedded Linux tools do not exist because there is no market for them.

My recent article at Embedded Systems Design magazine briefly mentions a few commercial offerings (yes, these tools exist and the companies that produce them are profitable), but it concentrates mostly on what you can do (hint - quite a lot) if you chose the do-it-yourself approach to embedded Linux tools.