A Flash- or Java-based version of the LCG would pretty much make my year, and lighten my wallet, as well.
It could be run functionally similar to Magic Online or perhaps more like Pox Nora. While it would be a pretty big effort to get it up and running, it would be rather simple, thereafter, to add in the new CPs. I also know for a fact that there are many of us who would drop healthy chunks of money on you if such a system were avaiable. It would also breathe new life into organized play, as you could host hedge tourneys and leagues right here in cyberspace.
Think about it. Don't just dismiss it out of hand.