First time I've tried to use the site. It's unfortunate that, due to the Ordnance Survey restriction, your apparently popular site has run out of data, again. Is there any chance you could publish the daily time you run out of data on your front page (just show "data last ran out" date & time)?
Thinking ahead... I haven't managed to access the data so I don't really know... if Ordnance Survey (cruelly) restrict say each website to the amount of OUR (sic) data we can access daily, maybe there will be some way you can enable us all to download a personal web page (+ sufficient data to 'auto' register if that's required with OS) and all get a personal data allowance!