So how is he going to pay online-only bills? Are the courts going to give him taxpayer money for late fees? Or it's his own fault for not predicting his arrest?
Can he read about politics as part of his duty as a voter? Due to Internet as a medium for accessing news, he's further restricted on being an informed voter.
How is he meant to send material to his lawyers? "Mail it" So instead of sending it virtually for free, he has to print it out, determine postage, go find a postal office and then ship it. Vice versa to receive it but it takes time. Not to mention the massive phone bill because VOIP is INTERNET.
How is he going to be monitored from accessing Internet that's everywhere? Anti-Satellite jammers? Anti-Wifi jammers?
How is it possible to prevent him from giving the password to someone to start a megaupload website? Better prevent phones, mail, etc, in that case.
Since I know he's technically proficient, he's probably using the Internet as we speak. So this order only serves to pad the ego of the prosecution team, show incompetence of judge and punish honest people for being honest.