Hello fishy,
We're volunteers here with a lot of experience in Type 1 diabetes. You'll likely get some info from others, too, so keep watching this site.
Search on the Internet under "inhaled insulin," and you will find plenty of information. These products have been under development for many years, and have only recently reached the market.
Sorry, I realize this may have been what you were referring to when you spoke of insulin inhalers, so you may be familiar with the literature already. It's just that I always hear it referred to as inhaled insulin.