I went skiing at Sugarbowl yesterday and took my new telemark gear.
I love it - it feel so natural to have my heel loose. The boots that I had custom fitted to my feet are excellent. The skis that I converted are just fine. My only complaint is that the telemark cable binding technology is so, well, 1970's, and these are new bindings (see the pictures.)
They're not step in. They're not releasable. If you get buried up to your waist in an avalanche you are stuck until you or someone else digs you out.
These days there are releasable bindings but they're a bit heavy and awkward and they're not step in. Step in telemark bindings are being worked on but the one's out now would require buying new boot and telemark boots are really expensive so there's no way I'm going to replace my still new boots.
I just googled for step-in telemark bindings are there are quite a few matches like the one called the TeleBulldog in this link - not the picture - that's my binding):
There is a 2006 review of bindings here (including my G3's):