Powered by Google this "instant" search portal searches the Web, images, news, video, Twitter and Google Maps. Though it is slower to react than single focussed searches, because it aggregates results across a range of reference types it is still useful. To find out more check out the video link in the bottom right corner of the search screen.
The best solution to this problem is Google Voice Numbers. The idea is to link all mobile numbers to a single web portal so that every time you call one of your phone numbers, you get a call on all your mobile phones. Growing entrepreneurs prefer to bulk Google Voice numbers to stay in touch with their target audience.