I'd say it was a valid question. I'm overclocked at 1Ghz as a standard boot-up profile for Maemo and the same goes for the NITdroid install I have as a secondary OS. If I'm streaming Flash from the web I might go to 1.15Ghz as there is a performance improvement to be had. I notice a large improvement over standard when overclocked from both loading apps and in-process tasks.