Ha! I have a feeling there was a reason I left Mother in there, but it escapes me now. Probably a 2 AM decision.
We were focused on being web-playable first and foremost because that's what we prefer. We had no idea people would prefer to download the game, or want to run it full screen. We didn't give much thought to desktop resolution (except to pick something that wouldn't be to large for most monitors). I'm glad it has some built-in full screen capabilities (thanks Unity). It is now obvious to me that a Windowed/Full Screen toggle is a required feature next time.
The starting letter issue is definitely a bug to work out. We're going to make each starting letter unique, which will limit us to only 24 attackers at once, but then we'll make up for it with speed and word length changes. That will also help with the late-game clutter when you have so many attackers you can't read anything.
Thanks for the feedback!