If you've been using LogMeIn Ignition for iPhone, prepare to be blown away by the iPad version. LogMeIn Ignition for iPad [$29.99- iTunes Link]has essentially the same functionality as the iPhone, but is much faster.
LogMeIn is a free service (with paid options depending on what you want) that works on a Mac or PC. It allows you to remotely control another computer. LogMeIn Ignition brings that functionality to iPhone and iPad. You have full right and left-click support as well as most all of the other useful key functions such as your "F" keys and arrows keys. If performance is an issue, you have complete control from the settings screen to change resolution and color quality. I tend to use Compressed; it is a step above Black and White and allows for a faster refresh. You can also change how you navigate on screen. You have two choices: screen moves or mouse moves. I lean towards screen moves as that gives me the most speed when navigating. Pinch to zoom works like a charm and is blazingly fast.
Ready for the bonus? LogMeIn Ignition is a Universal app, so you buy once and you can use it on iPhone, iPod Touch and iPad. For those that need a little extra power in their remote sessions, LogMeIn offers their Pro2 account which allows for even more flexibility such as copy/paste desktop sharing and remote printing between sessions. If you aren't sure which works best for you, there is a handy comparison chart.
I can't recommend LogMeIn Ignition enough. It's come in very handy when having to access my home computer.. and even my Mother-In-Law's PC for help. There are several VNC type of clients out there, but this one is fast, zero setup (compared to a VNC configuration) and has plans to meet your needs.
Check out the Video and Gallery after the break!