Right now, it seems like a standard in the Coptic churches of NJ to have powerpoint screens at least on one side of the church. Where a church is not structured to have powerpoint screens or plasma TV's, I have to admit it disrupts the beauty of the iconostasis. That isn't to say I don't like the idea. I think it's very helpful and keeps the congregation following along with the services. But I do hear that new churches being built are keeping in mind to have it so that screens can be put up without disrupting the beauty of the iconostasis.
By the way, this whole screen this is an evolution of something previous. Since we all use the same book, a small led-number system was stuck on a high part of the iconostasis to guide people on what page they're in in the service. Now, I guess people thought, why have books and page numbers when you can just show them the words yourself? And thus the idea of powerpoint liturgies and screens was born. You can download these powerpoint liturgies online. The most popular one is from the St. George and St. Shenouda Coptic Orthodox Church's website from Jersey City, NJ.
I heard rumors that the new priest in Staten Island who's tech savvy wanted to go further and put up screens on the pews, but obviously that's quite a financial mountain to climb. But I guess this idea has been patented now, so no copycats! (no, j/k, but the pew screens is a real rumor).