Cell Phone

Prey is a silent tracking program that you can install on your computer. If your computer goes missing, you can log in to their website to help track it down when it reconnects to the Internet.

I'm OK sets up an email chain that you can activate by text message in the event of an emergency.

TeamViewer is a great program for remote assistance and screen sharing. Installation is required on the server end, and the client just needs to download a small self-removing file to complete the remote connection.

WeFi is a WiFi hotspot sharing community. It provides a map with locations of known free WiFi hotspots, as submitted by other users.

Connectify is a simple program that lets you turn your laptop's WiFi antenna into a receiver for other devices (ad-hoc network). Your laptop must be plugged into a network via ethernet to provide Internet access to the other devices.

Evernote is a note utility to keep track of text and image notes and sync them between your mobile device and computer.

Google Docs is one of the most popular document storage and sharing websites. Any doument can be uploaded for storage. Text documents, spreadsheets, presentations, and drawings can be edited online. Documents can be shared with other users and multiple editors can access and make changes to a document at one time.

Orb allows you to share your media between all of your computers, your cell phone, Xbox 360, Wii, PS3, and more.

Dropbox is a cloud storage program. It creates a folder on your computer that automatically syncs with an online service, giving you access to your files on any other computer which you install Dropbox on. It also has a version for iPhone and Android devices.

doubleTwist syncs your music between iTunes and your iPhone or Android mobile device.