Using the HTML-based core app & hooking it up to work nicely on Chrome -- with offline support, preference storage, etc -- could be handy for Chrome OS netbooks/laptops, as well as being a good model for other HTML-based app stacks like Mozilla's WebAPI.
It might also be a nice way to test the less platform-dependent parts of the app more interactively & iteratively, just firing up the local index.html into Chrome!
Version: --
Severity: enhancement
URL: http://code.google.com/chrome/apps/