same here, I was thinking are you selling armpit or something?I read the first alternative as "I am armpit" when i first look at it. So don't go with that one in my opinion. It took time to realize that Arpit was is a name. It was the first time I heard that name. Maybe iamarpit could work in a country where Arpit is used often as a name.
I agree with you. If you use capital letter A:s like that, it looks cool, and it becomes clear. And if you get that Arpit is a name, it becomes compellingly unique. Unfortunately domain names are usually written in lower case letters, including in email addresses, so some people will get confused.iAmArpit - much better , sounds great and reading also , something different its really cool.