By scraping all Google+ profiles, it would not solve the problem of fake profiles. Anyone could use your Twitter username and let your followers think they are you. With migratus, you are sure that the Google+ profile it gives you is the one provided by the Twitter user.
If they can somehow create content that fools me into thinking they are the original person, I might just be as interested in following the impostor instead.
This is not very useful. It's essentially a directory that maps twitter ids to G+ profiles. If you're the first of your friends to sign up, you'll find no results.
Hard to categorize a tool as useful if it has social network effects (needs critical mass).
Note that by signing up you're giving up the profile association willingly into their database.
As much as I'd prefer to consolidate to using Google+, Google+ is not a replacement for Twitter for me. I would like to be able to post publicly based on broad topics like #programming so that all of my friends and family that have no clue what technobabble I am rambling about would not have to see it in their feed. I created a programming circle, but that does not make my posts public if I post to that circle. As far as I know, any time you post to public, everyone who has put you in a circle sees your post. I get the impression that this is what Sparks is for, but I have not yet made the connection. Possibly I do not understand how to use Google+ yet. If someone knows how to accomplish this, please tell.
With G+ it's possible to filter your output (into circles) but there's no way to filter the input. I've put all my hacker friends into a hacker circle, but when I browse that stream I get all their public/extended posts plus the posts for whatever circle they've put me in. Basically, they know I'm following, but they can't know why I'm following. I can't signal to them that I want them to put me in circle for all their hacking posts and not their pictures-of-cats posts.
I've actually started making posts that say, "If you can see this post, I'm following you because [X]."
Even if the results are not all accurate and that relying on gplus.to may not be the best solution, I get more results with it than with migratus, which is why I added a link to your app on migratus.
Google already has automated system to link up members to other profiles across the web. They could help with this fairly easily. Would people find that intrusive or creepy?
I was expecting a service that would scrape all the G+ profiles for the twitter names listed there and compare it with my list of twitter followers.