As for that quick tip -- you may notice that the new emulator doesn't respond to hardware keyboard input anymore, leaving you with just the SIP for text entry. This is because the emulator is now closer to a real device, which only supports one or the other (not both) at any given time. Good news is that you can "deploy" and "hide" the hardware keyboard with the PageUp and PageDown keys (or toggle with Pause/Break), enabling you to type quickly (hardware keyboard) and test your code with the SIP. We kept the SIP as the default (rather than the hardware keyboard) since that is likely to be a more common form-factor ("slate"-type devices).
This (and other useful information) is covered in the release notes.