To those who have used this keyboard, is there any noticeable lag when typing? I've used several Logitech cordless keyboards, and there is noticeable lag on all of them. Even the latest MX3000 cordless desktop's keyboard has quite some lag, especially noticeable when typing quickly (~130+wpm). The MX700 mouse doesn't suffer this kind of lag though. I haven't used any bluetooth keyboard/mice, however, so I'd like to know how these fare wrt lag. I've ordered a new Dual 2.3GHz PowerMac G5 with the wireless bluetooth keyboard/mouse combo.