I share your dislike for companies who don't provide a postal mail address and a phone number on their web sites. As I've had no dealings with Gadgetino though, I can't offer a personal opinion of them, and ResellerRatings has no knowledge of them. I know of them only because I tried to visit the PDair web site recently and was redirected.

If you're looking to make a case purchase, you might try eBay. I'm not a fan of the site, but I did purchase a PDair pouch type case for my N800 there. The cost savings were significant, while the total price was low enough that I wouldn't be too upset if the seller took my money and ran. (Did I mention I'm not a fan of eBay?)

If you have questions about the PDair cases, you could try asking here. Likely, there are a number of PDair case owners here who'd be happy to help.