I would expect that from a school leaver or for an unskilled applicant over here but not a skilled worker. My CV is 3 pages long and I know my wife's is like a small novel!! If I got a CV from someone applying for a skilled position and it was only a page long, no matter how good they said they were I would probably reject them.
Is the resume in the US a different format from the UK and counts for a lot less in the application process? I'm asking as I find it very interesting.
Maybe different, maybe not. Mine is quite long as well. However, each separate job you apply for should have its own CV listing only the qualifications relevant to the postition advertised, strip out everything else. There was a time not so long ago when the CV (or resume) over here was expected to include all your qualifications but that's been evolving over the last decade or two. All it's expected to do is to grab the reader's attention (remember the reader might be reading dozens in a short time and will only focus on the first page unless it's been computor sorted) I suppose the best analogy would be to compare it to a television advert selling your ability. If it catches the hiring manager's attention, it will lead to an initial interview and likely to the prospect filling out a proper job application.
By the way, I wouldn't reccomend listing hobbies, It's possible that they may be contrary to the beliefs of the hiring managers and in any case, it demonstrates less than total interest in the job itself. They're generally prohibited by law from asking questions extrtaneous to the position. In the past it was considerred an asset if an applicant was married (the reasoning was that married persons were more stable) but now that's one of the questions prohibitted.
Here the CV should be limited to how you can fill the postion advertised and give a few relevant examples of your experience (not a complete list)