Scott has a nice piece on Google Gears - Google's recent move to bring local-storage and offline capabilities to web applications.
"Stunning move by Google today in the Rich Internet Application space. While most of us (myself included) are off debating Flash vs. Silverlight vs. Apollo vs. Whatever, Google introduces Google Gears...at technology all of the above (or none of the above) can utilize...This is gonna get good.
This is a huge move and is quite brilliant. In one seemingly innocuous move (and one tiny 700k (yes, 700K) download) Google is well positioned to get Google Docs, including Writely, Spreadsheet and Presentation, along with who knows what else, enabled for offline use. And the whole thing is Open Sourced via the New BSD License."