Integrating tablet and phone

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http://androidforums.com – I'm wondering if there's an app which permits an Android Tablet to use a phone's sensors and other functions via WiFi. For example, my phone has GPS, the tablet doesn't. With this hypothetical app the tablet would be able to use the phone's GPS and could have much larger maps (and other GPS related functions) than the phone's screen. It would also be desirable to have the capability to enter and read text messages on the tablet's screen, edit phonebook contacts, etc. Tethering would be desirable, although that capability already exists in many apps. Thoughts? (General)