I LOVE my Canon G11 but it just died on me yesturday (of course while I'm on vacation). I am debating whether to get another G11 or the G15. Anyone have experience with both. I do have a telephoto lens that connects to the G11, I'm assuming the G15 will have the same thread connections. Any downgrades or big differences between the two? I don't want to assume the G15 is better just because it's newer. Thanks!