I'm a bit confused about your request. By features are you asking about? End caps? Netting? Something else?
I would probably say that there is no new "stellar designs" because a bridge is a bridge. They all have spreaders, suspension triangles and side arcs. Some, like Grizz's, have netting and he has several designs regarding different ways of doing the netting that I have found interesting but not yet tried. He has also shown several different ways to attach the hammock body to the suspension.
There are a whole range of dimensions for length, head width, foot width, arc depth, spreader length. It depends on your size, wants and tolerance for tippiness. In each of my 4 bridges so far I have played with at least one of these dimensions. I think I know what I like now...
My goal over the last year has to lighten my bridges while trying to find the dimensions I like best. So I am using dynaglide (or Endura-12 which is very similar) for the whole suspension and arcs, CF spreaders and now using some lighter materials (the current fabric on the cutting board is a coated polyester weighing 1.24 oz/sq yd.--hopefully a single layer will hold me!) I expect to have this simple bridge at <13oz including tree huggers. But it will not have a net. If I am satisfied with this design (and there is certainly no guarantee there) then perhaps I will work on netting... In truth I rarely take the hammocks out for a trip as most of my camping is with my decidedly ground-loving wife. But it gives me something to putter with when I am caught up on real-world work.
So I guess it would be helpful to know what exactly you are looking for. Note you can also search just the DIY forum for key works or the tag: Bridge to narrow your search.
Last edited by BER; 01-10-2012 at 14:03..