FYI - in case anyone is interested, I was able to easily tether my TF700 to my Android phone over bluetooth. It'll even share your phones wifi connection via bluetooth! Extremely easy to setup and it just works...
1. Install FoxFi on your phone
2. Install "PDANet for Tablets" on your TF700 (available for free in Play Store)
3. Select "Activate Bluetooth DUN" in FoxFi on the phone
4. Run PDANet for Tablets on the TF700 and configure it for bluetooth.
5. Simple pair the tablet and phone from within PDANet for Tablets.
6. That's it - you'll be tethered to your phone via bluetooth!
I can't believe how well it works.... Enjoy!
Also - Can do the same thing for wifi tethering as well. The nice thing about bluetooth tethering though is that you can actually share the wifi connection on your phone via bluetooth (something you can't do with normal wifi tethering)... Although, I guess if your phone can connect to wifi, you could just connect your tablet directly to the same wifi!

But, it works nonetheless!
Sent from my ASUS Transformer Pad TF700T using Tapatalk 2