For those of you with iPhones / iPads - Canon Singapore released an App on 22 Dec 2011 detailing all the currently available Canon Lenses. It has nice features like Depth of Field calculations etc.
Despite being from Canon Singapore, it appears to be available worldwide (I think?)
The links to iTunes is:
http://itunes.apple.com/us/app/canonsglens/id490527073
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Forgot to say - its free
Despite being from Canon Singapore, it appears to be available worldwide (I think?)
The links to iTunes is:
http://itunes.apple.com/us/app/canonsglens/id490527073
--
Forgot to say - its free