1. The lack of sign in button is confusing (this can be solved by simply renaming 'Go' to 'Login')
2. I've been waiting for etacts to finish importing whatever it is importing for almost 6 hours, and with no ETA / status bar / email update I'm inclined to feel that it's either not working, is heavily bottle necked, or something went wrong
3. Assuming the system is actually just busy doing all the processing on my emails, as an end user I would prefer it to do all this in the background, in a manner that is oblivious to me.
4. This means you could/should display 'incomplete' information, as long as it comes with the warning of 'We've still got XXXXXX emails to process' or something similar :)
I really just wanted to see what the interface/experience is like, regardless of exactly how much information you've processed (i.e. I'm ok with seeing a 'last contacted 3 years ago' message, even though I contacted them yesterday, because I realize you're still processing the information, but I want to see it now, not five hours from now :)
You do a great job at a very simple one-click login/signup, but having to wait forever to use this will (imo) lose a lot of people down the road who just "want to try it" (one of the best quotable comments I've heard a few weeks ago was from one of the founders of BackType -- "Your biggest enemy is the back button")
Anyway, I do look forward to using it asap :D