Utilizing mobile device functionality from remote computers

Various technologies and techniques are disclosed for utilizing mobile device information and functionality from separate computing devices. A synchronization operation is performed to update a data store with communication information from a mobile device. The synchronization operation is performed wirelessly with the mobile device. A user of a separate computing device can access the communication information stored in the data store separately from the mobile device. The user of the separate computing device can remotely initiate operations on the mobile device from the separate computing device. For example, the user can initiate the sending of text messages through the mobile device from the separate computing device. As another example, the user can initiate the placing of a telephone call through the mobile device from the separate computing device.