Bindi,
On the one hand, I think the electronic targets are a wonderful step in the right direction - especially after I got tagged in the head today by a chunk of spindle from a neighboring target while in the pits. I was already in favor of them for precisely this reason - this just drove the point home - literally.
On the other hand... having zero delay and shooters being able to blaze off shots as fast as they register on the screen starts to smack of what I have heard of 600-1000yd Benchrest. No (or very little) emphasis on wind reading - just set the gun up right and fire for effect. I realize its not remotely that simple, but when most people I know who talk about 'machine-gunning' the target or having a 'belt-fed' bolt gun in NRA HP Prone or F-Class are talking about being done in 3-5 minutes as being really fast, and people shooting electronic targets are talking about being done in under 1 minute... it really starts to seem like it would begin to de-emphasize wind reading vs. gun setup.
On the other hand... wait, how many hands do we have here?

most electronic target systems I have looked at, and especially the Kongsberg (sp?) system they used in Blair Atholl in 2011 when I shot there gives you no - or very limited - ability to look at other targets and see if that weird high shot was just you, or if there is some bizarre range/topo effect going on out there thats affecting others. No watching in the spotting scope and seeing that the known-good shooter two targets up from you just nerfed one out into the 8-ring - maybe its a good time to wait for the condition to stabilize...
Electronic targets may be the right answer, long term. I think coupled with Fullbore, they would be a great idea. I'm somewhat less enthused about them during a string-fire match, as I feel they could be detrimental to the spirit of the game.
YMMV,
Monte