[…] IBM has sent a nastygram to the company TurboHercules, with a “non-exhaustive” list of US patents that it believes “will be infringed” by TurboHercules' code.
[…] there are larger issues here. One is that IBM is either a friend of open source, or it's simply an opportunist, supporting some projects when it suits, and attacking others when it doesn't. There's also the worrying point that among the patents that IBM cites in its letter to TurboHercules, there seem to be some that it has “pledged” to the open source community