1. If I am unable (or unwilling) to serve when called, I should be able to pick up a phone and press "1" to opt out, without having another person determine if my reasons for not serving are valid.
2. I'd like to be able to serve on a jury remotely. Stream the trial over the internet, e-mail the court documents, etc. I'd render the same verdict. As a matter of fact, the verdict would be more true to the evidence, testimony and law, instead of external factors having nothing to do with the trial. (Bad coffee, frowning defendants, etc.)
3. Allow me to opt out of invasive jury questionaires without risking contempt of court charges. Most of the questions are none of their business.
4. Let me ask questions during the trial. It's a search for truth, not a show or a game. On that note, let ME decide what evidence I'll consider.
5. Hold the trial without me there, and then let me review the testimony and evidence. I can go through three days of trial work a day, thus reducing the amount of time I have to spend on it.
I've got a lot of other suggestions, but those will do for now.