There have been lots of changes in the first two years of Adobe's promising rich Internet platform, and that's meant choppy waters for developers. But eWEEK Labs finds that Version 2 adds the stability and maturity needed to <A HREF="http://www.eweek.com/article2/0,1895,2004421,00.asp?kc=EWEWKEMLP081706WBS1">make Flex a major platform</A> for creating Web apps and services.