I have liked using Google Plus for a few days, but found the Google+ ID a little too tedious to remember. The Google+ profile is basically a numerical id and very difficult to share with people. There is no way to customize this profile id into a login name.
But there is a quick fix for that which is not from Google+ but a third-party tool called GPlus.to.
Just look up your Google+ profile ID and insert that number along with your nickname into the online tool.
Now with this I have a more easy to remember URL for my Google+ profile as Gplus.to/adityakane instead of the long and difficult to remember URL plus.google.com/u/0/116447136547996635976.
I am pretty sure that once Google+ is out of beta it will soon make this feature available but until then you might want to use Gplus.to.
Do drop in your comments.