Yes. They are talking about giving you the option of "buying" it for a nominal price if you wish. After 4 years, who cares though? If there is anything that warrants buying a new laptop, it is graduating medical school.
The PDA is the same deal. I don't even want to use mine now, so by then hopefully I'll still know where it is. During clinical rotations you are allowed to use other devices, as long as it has the required software and you can do all of your logs.
I submitted by secondary the DAY I got it. I had my AMCAS submitted the day it opened and all transcripts were in by the end of the week to put it in perspective. I didn't get called for an interview till the end of September when I was already accepted at 2 places. Just relax and let things roll. If it is REALLY long, like October/November then I'd call up. They are really nice and it isn't some intentional thing to anger you.