You should be weary of any business that asks you to prepay in full and doesn't offer a solid delivery date. What are you guys who prepaid going to do if TI goes out of business next week, the week after or next month? If the speculation that they're having financial problems and can't pay their supplier (Polytech) is true, you're taking a hell of a chance. Being short on capital and inability to pay suppliers is a good indicator of where things might be headed for a small company.
From what I've read so far in the different threads, they're not very forthcoming with the reasons for the delays... and resort to petty bickering with thread "trolls" instead. I'll definitely wait till the goods are available in stock and ready to ship. This whole "prepay a grand and wait a year or two while we keep you in suspense" thing is nonsense.
Good luck, everyone.
The way I see it, they've kept their end of the bargain and I don't expect further explanation from them until "this winter" is over. Not sure what everyone else was reading but I don't expect any explanation or updates until then.