Thanks for your effort in hosting and running the pool. It was a good run and I believe it to be one of the most stable pools out there. Good luck with your future plans, and HAPPY NEW YEAR!
Cheers!
I have a few projects in mind.
1) A notification site, you put in bitcoin addresses or electrum master public keys and then you get a notification on any transactions that occur on any of the addresses.
2) A funds splitting app, where you define a split for funds. Example: 25% goes to address a, 75% to address b. Then you are issued an address and any funds that go to that address is split as defined automatically.
Both of those would be enabled with a bitcoin transaction processing engine using bitcoinj and electrum servers. The transaction engine would be good for people building all sorts of bitcoin related things.