Using an iPad to access a desktop computer remotely is a great boon to travelers. LogMeIn Ignition has been available for some time for the iPad and iPhone. And earlier this week GoToMyPC was released for the iPad. Both have positive reviews in the App Store. The GoToMyPC is free and has a 30-day free trial. After that it costs $10 per month for a single user, or $100 per year. The LogMeIn app costs $29.99. LogMeIn has a free version of their service that lets you control your PC, but you'll need to Pro version if you want to print, share files, transfer files between computers, and other features. The Pro version costs $70 per year. This chart compares the features of the free and pro versions.