Is there any Software that can see existing type-in traffic of a domain
 

Whether it's registered to someone or not?

Or can you suggest some good domain software?

you can use the overture tool to estimate it

http://www.digitalpoint.com/tools/suggestion/?

Checks Wordtracker and Overture.

Actually guys - I meant type-ins, not search engine keywords...

that's what they meant too, just use overture to see how many people searched for your
domain name and you can estimate the type-in traffic that the domain will get, I'm sure if you Goole it you'll find some useful tips ;)

In my experience - keywords don't always equal typeins, because you can get the same results from "domain.com" as you can with a cloaked url displaying as "domain.site.com"

I'm saying, is there a way to figure out pure typeins, in the browser - like MSN tracking how many times a url is attempted to type in that does'nt exist.

I could be wrong though..

search for the domain in overture.
approximately 80% of those searches are pass thrus from when someone types in the domain in msn and it falls thru to the msn search results