Sign-on page looks a bit like it requires a Launchpad account

[Matthew Paul Thomas]

1. In Ubuntu Software Center, navigate to a for-purchase item, and choose "Buy".

What you see:
------------
Sign in
Please note that if you've registered with Launchpad you can use your existing Launchpad credentials to log in.
Email address
[_____________________________]
Password
[_____________________________]
------------

The phrase "Please note that" is usually just filler. Therefore, people may not understand that having a Launchpad account is a relatively esoteric option, and may think that you *need* a Launchpad account to sign in.

I suggest instead moving the Launchpad mention under the e-mail address field, and putting it in brackets:

------------
Sign in to Ubuntu Single Sign On

Email address
[_____________________________]
(Or if you have a Launchpad account, you can use that instead.)

Password
[_____________________________]
------------

[Stuart Metcalfe (stuartmetcalfe)]

Thanks mpt, that's a good suggestion and should be trivial to implement. We'll want to put some kind of tracking in place before we make the change to see if it alters the number of people attempting to create new SSO accounts when they have existing LP ones but once that's in place, this should be easy enough to do.