The TX2 looks like a sweet laptop, but at $2K+ we're talking about a whole different class of device. There are probably lots of Z alternatives if "money is no object". The more interesting question is: if you cap the price at around that of an SL-3200 ($600 - $700 including accessories), what are the alternatives?
I use my Z mainly as an ultra-portable thin client. Hardware wise I need WiFi, Bluetooth, and a keyboard. Software wise I need a full web browser, email, VNC, SSH, IM, a good text editor (Vim), a basic spreadsheet, and a bash shell. The Kohjinsha is the first gadget I've seen since Sharp introduced the clamshell series that seems to meet all those requirements at anything even close to the Z's price.
How about it? Are there other gadgets I should be considering that meet the above criteria and are a) still in production, B) under $900? Or are Sharp and Kohjinsha the only other games in town?