From Google Mobile blog:
Ever use a mobile web application and suddenly lose your cell connection? That’s happened to me many times. If you’ve shared my pain, you’ll be excited to know that we’ve launched Google Gears for mobile, which lets users access Gears-enabled mobile web apps offline. Initially available for Internet Explorer Mobile on Windows Mobile 5 and 6 devices, mobile web app developers have already started integrating Gears for mobile into their online services.
For more on the vision for Google Gears for mobile and its origins, watch this video.
Take Zoho and Buxfer, for example: Zoho is a powerful suite of web-based productivity applications, while Buxfer is an innovative personal finance web application that helps you track your money. With Google Gears for mobile integrated into mobile Zoho and Buxfer, you can now access these web applications even when your phone is disconnected from the mobile web. Stuck on a plane? No problem — you can still read your docs on your mobile with Zoho Writer Mobile offline. Want to buy that new plasma TV, but can’t remember how much is in your account? Check your balance with Buxfer’s mobile web application, even if there is no cell phone signal. Try them out on your Windows Mobile 6 device by going to m.buxfer.com or mobile.zoho.com.
When you first access mobile Buxfer or Zoho Writer on your Windows Mobile device and go offline, you will be asked to install Google Gears for mobile. Once installed, Gears sits happily on your phone helping you stay connected to your data — even when you lose your network connection.
If you’re a developer who’s interested in creating mobile web applications using Google Gears for mobile you can find out more information on our developer site. Finally, if you’re not a Windows Mobile user, stay tuned — we’re working to roll out Google Gears for other platforms with capable web browsers, including Android.
Source: Google Mobile blog