>I do trust you aren't an Ebay security team? ;)

Luckily, not my kind of a gig.

>http://www.wired.com/2011/10/iphone-keylogger-spying/ etc.

This attack depends on being able to identify individual keys so it's not really applicable here. However, a similar attack might be possible here if not for the very small sample size.

It was guessing pairs of keys. But anyway.