The R community seems to be growing rapidly, with many favorable reviews of the language/system. For instance --
Forbes Magazine, Names You Need to Know in 2011: R Data Analysis Software:
http://blogs.forbes.com/smcnally/2010/11/10/names-you-need-to-know-in-2011-r-data-analysis-software
(and links therein)
And some of its developers are suggesting that they scrap it and start over (don't know if the whole "Core Team"'s on board tho'):
http://www.stat.auckland.ac.nz/~ihaka/downloads/Compstat-2008-Slides.pdf
Are there parallels like this in the development of other languages/environments/ecosystems (e.g., Python3, Perl6 "revisions")? How do these efforts usually end up (I guess we're still waiting to see about Python3 and Perl6...) -- and how would it affect your business's decision to develop a library in this environment?
Programming in the business world is screwed up beyond all imagination. The more money a given application is responsible for, the more likely it is that it's a house-of-cards (pun intended for MVS nerds). They're always mishmashes of COBOL, SAS, DFSORT, and random proprietary languages that have never been the subject of a third-party book, and were sold to a company that was sold to a company that was sold to CA Technologies back in the 1970s. Whatever these languages can't do is implemented through Escher-painting constructions of Excel references and VBA macros.
So, when people say that R has some issues, I say, "boo fucking hoo".
Most businesses suffer from an unnatural separation between IT and the business end. If business people want something programmed, they call IT. They don't learn Python and do it themselves, because Python is a "programming language". R is the first real language that business people are being encouraged to learn, because it's an "analysis environment". You have no idea how often I have to edit the word "programming" out of my presentations for this reason.
R will win in business because it's decent, and it's been around long enough to not be scary to managers. I'd be cautious about drawing comparisons to other languages that have undergone big design changes, because, as far as I can tell, the existence of a decent language in the business world is entirely without precedent.
(Edit: In case the above came off as sounding like a "non-hackers are idiots" rant, it wasn't meant as such. Many of the people that produce these hideous monstrosities of SAS and VBA code have PhDs in statistics and atmospheric sciences. You can be pretty smart without knowing how to write software well.)