The inclusive Unlimited Web Bolt On can be used in the UK only for your unlimited use (subject to this excessive usage policy) of Telefónica O2 UK's GPRS/ 3G networks (as applicable to your handset), for personal internet use via your mobile phone.
All usage must be for your private, personal and non-commercial purposes. You may not use your SIM Card:
in, or connected to, any other device including modems;
to allow the continuous streaming of any audio / video content, enable Voice over Internet (Voip), P2P or file sharing; or
in such a way that adversely impacts the service to other O2 customers.
As far as I know o2 only offer tethering as an aditional bolton for the iphone.
You would need to speak to customer services to confirm this as these forums are basically customer to customer with a few c/s people posting.
also on 2g it would take a long time to hit 500mb but on 3g that would not take long watching streaming etc
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