This question already has an answer here:
Where can I set a vanity URL for my Google+ profile? Ideally I would like to be able to have my current
profiles.google.com URL brought over in case Google decide the profiles are now valid for Google Plus.
I've seen services such as gplus.to and plus.ly but neither are official means.
From my searches I also don't think it's currently available (infered from the lack of results).
I could have it like
profiles.google.com/me (which you could choose here: http://www.google.com/profiles/me/editprofile?edit=t#about). But this link does not work anymore (IMHO because profiles.google.com is being integrated into Google+)