Actually as an addendum, it's REALLY hard to take a commercial app that wants your personal details seriously when it tells you it's to help prevent you "loosing" your data.
It's reasonably unforgivable that wasn't caught, doesn't inspire great confidence when the very first screen of the app proves that it was written by either utter cretins or worse, people who don't give a crap. (and yes I recognise it wasn't actually written by Imagine). But that's why you'll see a registration on the system for "Fakey Fakerson"
This is the HowItWorks app rather than RG btw, which I've chosen to test because it's free. Incidentally bonus points for making the 12 month subscription cost more than double the 6 month one

EDIT : Actually reading however I think works bloody well on the iPhone in portrait mode. the iPad is going to be magnificent for this. The app is generally good. It's certainly fast enough but lacks some very, very obvious UI niceities. Like proper "smooth scrolling" and the ability to move to the next page by scrolling off the edge of the existing one. As someone else mentioned it only has "Zoom" and "Double page" and doesn't properly support pinch zoom.
Certainly usable though, everyone here with an ipod touch or phone needs to get the HowItWorks app to test this.
The average game player is 33 years old.
The average age of the most frequent game buyer is 38 years old. 92 percent of computer game buyers and 80 percent of console game buyers are over the age of 18
(Source : ESA)