Galven,
No pardon necessary, that's why this place exists, to ask questions.
The typical Ethernet adapter in Apple machines is 10/100/1000, or "gigabit." Because the MacBook Air's adapter is coming in over USB it can't support those speeds over that bus and thus is limited to 10Mbs or 100Mbs. To 98% of most users, with current consumer technology this limitation will not be noticeable. But it's important to identify differences, regardless.
As far as my remark about the leveled playing field, yes I was referring to the SSD in the MBP. That's honestly what's going to make these inevitable comparison threads between the 13" MBP and 13" MBA so difficult, because out of the box they're not equal. If CPU clock speed made a huge different in day-to-day computing the same would be say about the unfair advantage the 13" MBP has over the Air.
Cibby,
My 13" MBP (for purposes of comparison) has 4GB of RAM. We did some side-by-side in the office yesterday and we were trying our best to replicate an out of the box, similar price point experience. In a perfect, money is no object world, I'd of course take a 13" MBP (i7) with 8GB of RAM and an SSD but I'm also spending significantly more than the 13" MBA i7 that's just as impressive.
Yes, RAM is definitely a deal breaker for users. I too will often run multiple VMs and can definitely use all of my allocation (8GB). But I'm also sitting at my desk with a much more powerful Mac Pro. The Air (and previously the MBP) were my "in the field" units, where power is less important and portability with the instant on functionality reign supreme.
The SSD is quite noticeable with the navigation responsiveness. Opening programs, shuffling through files or navigating through folders or terminal windows is about as instant as it gets. I can easily maintain multiple browsers with 10-12 tabs and rapidly cycle between them and each tab with zero hesitation from the unit.