I had to wait about 6 weeks for mine, and have had them since mid-december. Really really pleased with them. They produce a big fat controlled bass for such a weeny speaker and a very natural clear sound. Won't be upgrading them for many-a-year I think.
Regarding PayPal, that may be something to do with all the problems they had with their online credit card system. They just couldn't seem to get the problem rectified so I guess they've given up on it. Slightly different implications if they are taking the money upfront, although there is some recourse with Paypal. They didnt charge my credit card until after the 30 day trial period after delivery. However, my impression is that these are thoroughly decent guys, and I don't have any qualms about recommending them.
I hadn't heard about the sister company (Arcaydis) until I spoke to them on the phone and they told me about it. I don't know but I expect the reason for the two brands are to do with internal business politics (ie. ownership) rather than anything else, but it is hardly an issue.