The first is already in progress, but could be improved by using more advanced web technology, especially where communicating ground texts with comments are invloved. If in some way a server with sufficient (disc and processing) capacity could be be available, an usefull option could also be to make the hebrew and greek ground texts available in html form, interlinear with the english version, with some more work even in a word-wise form, and with ample editing (alson on user side) and commenting facilities. Linking this up with strongs annotated web-bible versions and automatically linking in the Perseus greek lexicon would make a very strong bible research site.
The second has my attention now, since many programming packages are becoming available on the web, and tend to be more and more oriented toward good (graphical) user interfaces. It makes sense to use available browser technolgy to interface with complex programming environments, since all the currently available UI components can be used through these browsers, in a fairly efficient and standardized fashion.
I've quickly looked at some java supplied stuff and found a net-editor application (including relaxation mechanisms) which promises to be usefull as a (more general) net editor. The compiler soesn't seem extremely quick, and generates errors for missing code checks ( where are You Get What You Asked Fro unix/C days ?!), but works fine for some of the things I made.
This makes it possible to have a www based graphical programming language, dynamically simulated, and with lots of powerfull UI relatively easily available (especially when cominbed with the now available Tcl/Tk Netscape pluginand the 3D redenering capacities of the same).