I am a first time MacBook Pro user. I bought this laptop for my business and, when on travel, will need to connect my laptop to the Internet wirelessly. Can I connect my MacBook to the Internet through my I-Phone? Will I need to add software to one or both systems (I-Phone and MacBook) to do this? As a backup, are there any pay-as-you-go aircards that actually work on a Mac system? I have heard/read negative things about the Virgin Mobile Aircard. Bottom line is that I need reliable connectivity on occasion, thus I do not need a 1 or 2 year contract. I am located on the East Coast, if this helps. Thanks!