You may have noticed Google's forecast feature on your HTML5-capable smartphone browser -- simply typing "weather" into the search field brings up a basic real-time temperature tool, complete with hourly and five-day forecasts for your current location. That feature has been around in one form or another since the beginning of last year, but as of this week, it's made its way to tablets, too. Web weather is entirely browser based, and you can bring it up in just the same way as on a smartphone -- confirm tha