I'm going to have to go with iTeleport. Didn't like the way they handled their customers in the beginning (remember when it was Jaadu VNC and they dropped the price, but tried to tell everyone that they're going to charge for updates? Wasn't even enforceable by the App Store, as program updates are free). However, they do offer a "Touchscreen Mode" that I don't recall seeing on other VNC clients.
I can remote into my desktop and just tap on the close button, tap on a text field, tap on the Apple logo, well, you get the picture.
Thankfully, iTeleport is now Universal, too.
I'm hoping that one of these VNC clients or LogMeIn is going to be smart enough to pull up the keyboard when one clicks on a text field. That would really be a nice touch.