let me start with the bad news: Right now you will need to have a valid CNDA and IPLA with Intel in place. You can then either get a loaner through your Intel FAE/AE contactor request a loaner through MIDDevTools@intel.com. The prerequisite are however those two agreements.
The good news is that at IDF in September this year we intend to anounce support for an additional low-cost JTAG device that can then be purchased in the price range between $200 and $800. This is when th JTAG solution will be available for general use.