Though it’s “old news”, Hans Bergsten’s articles on JSP 1.2 — part 1 and part 2 — are good reads ifin’ you do the JSP stuff. The best improvements, for my money, are clarifications of the tag lifecycle, the
TryCatchFinally tag interface, and the <variable> element for TLDs. The overall syntax improvements for TLDs, esp. the inline documentation improvements available with <example> are shnazy too.
Now, maybe someday, I’ll get all up in that JSP 2.0 bidness.