[I have searched for a thread about this but couldn't find one]

This video on youtube raises some concerns with me about the screen and/or OS performance.

I've heard reviews say the screen is great and the OS is very quick but on the evidence of this video something is not quite right.

Has anyone with an N900 experianced anything similar?
He doesn't seem to acknowledge the issue in the vid but you can see him having to press multiple times to get a response.

Please note that I'm not trolling for a reaction. I like Nokia phones and am very hopeful of the N900.