OK, thanks for the info! That OP-1 looks super fun, actually. I'll have to start saving up :)
It's expensive but well worth it for the people who click with it. I would recommend trying one before you buy it, especially if you can spend a good amount of time with it. I felt a little let down during my first week or so with it, but then it clicked and became instantly essential. It doesn't go that way for everyone, but it seems most people end up loving it.