It's not obsolete, AFAIK, Calen is really busy right now, and he might be a bit behind on e-mails.
I think there was a more current e-mail address posted a few pages back. (EDIT: actually, it's just a few posts up
)
Even if you have to wait a bit, I'd say stick it out and get one.
It's one of my favourite vapes, and IMO a bargain for a vape with an all glass air AND vapor path, with nothing but glass and hot air being exposed to the herb, with no possibility of butane residues getting in the air path (unlike a few butane powered vapes).
And they look damn cool