Not to try to take away from one of Jeff's sponsors -- especially since Etonic is my golf glove of choice when I play that sport -- but Ebonite already makes this product specifically for bowling.
It's called the ProTector glove, and it's a material very similar to black cabretta leather with red trim. It has the four fingers but no thumb. Also, it has tiny velcro straps on fingers 3 and 4 that you can cinch up so the torque of your release doesn't pull the glove off your hand.
I started using one about three seasons ago to try to lessen the callouses I was getting on the pads of my fingers, and also as a means of controlling the effects of sweat on my hand. The glove dissipates the sweat, and has allowed my fingertips to remain soft.
It lessens my feel in the ball slightly but not too much. Also, one glove will last me nearly an entire league season. The material feels just like cabretta but I'm guessing it's a synthetic, so it could be made to withstand more friction and sweat, long-term, than most golf gloves can.
Surprisingly, the cost is about the same or less than a good golf glove -- about $15 to $20. The only downside is that few pro shops stock this glove and it's a special-order item.
Jeff, try to get Etonic to make something like this in the future. The Ebonite product is great but they don't market it very well. I think Etonic could corner the market easily if it tried.
Jess