At the risk of stomping on people's fun (because it's fun to run around and cry that the sky is falling), I'm going to be the killjoy here and say a couple of things.
Yes, Malhavoc is switching vendors. You can read our press release regarding the change
here. The price of our pdfs has stayed the same.
I know that change can be off-putting. That's why we put out a brand new free (short) pdf on that site called Narrog the Earth Serpent so you could give the new vendor a try for free. I think that if you actually try DriveThru you'll find that it's not hard (you need the latest version of Adobe reader, but that's free too). They've got some nice How To and FAQ pages that you'll find to be very helpful (and if you want a laugh, click on the speaker on the menu board, in fact do it a number of times).
No, it's not the case that you can't transfer the between two machines. I know that some people are telling you can't transfer the file from your desktop to your laptop (or whatever), but, to be blunt, they're wrong. You can. You can also make backup copies and print just as easily as you could before. There are limitations in the cut and paste feature, but we're thinking about asking them to relax those a bit as well.
No, Malhavoc didn't try to buy RPGNow. Malhavoc doesn't have any kind of stake in DriveThru. (And for the record, as long as I own Malhavoc, we'll have no interest in getting involved in that side of the business at all.) However, we wouldn't have made the change if we didn't think that they could provide the service our customers require. In fact, if you talk to someone who's actually *used* DriveThru, you'll find that they'll most likely tell you that it was easy, quick, and that customer service (if you need it) is also quick and helpful.