Opera has launched a new offering called Opera Link which lets you bookmark web sites using its PC version and mobile version of browsers.
It lets you synchronize the bookmarks across the devices. You can bookmark a site in your PC and access the same from your mobile
Opera Link is supported in Opera 9.5 beta and the Opera Mini 4 beta
You need to signup for a my.opera.com account to use this service.
Your fingers might get some respite during mobile browsing
Mozilla is also reportedly working on a similar feature for Firefox 3.0