It is never too early to send emails. High end cases aren't cheap to develope because they require very precise fit. So a company isn't going to invest in making one unless they know they can move X number of units. Emailing them will help show demand
yes it is but its also very expensive coming in at around $115 I had one for one of my Treos back in the day. I plan to have my Lumia for a while maybe in a couple of months if I can afford it.