Has anyone ever seen the show 'The Pretender'?

For those who haven't it's about a genius who travels around helping people who are in need or in trouble and this genius' name is Jarod. He's so smart that he can pretend to be in any line of work - which is how the show is named. He imitates Doctor, Lawyers, cops anything he has to to achieve his philanthropic goals.

Anyways - to my question -

He has this really nifty computer in a briefcase type thing that he uses to hack into about anywhere he desires. this computer makes it's internet contact through a small satellite dish that protrudes from the briefcase - so he can travel anywhere with it and have internet access anywhere anytime. Are these types of portable computers real? And if so are they optainable to the general public? I know there are laptops and notebooks but even these can't get internet access in a moving vehicle like Jarods does. So are they really out there or are they a figment of screenwriters imaginations?