Someone on a text-messaging social site called Twitter.com has created an account called ReadyReady, with a buddy icon that definitely resembles some kind of code pad and/or decrypt key.
Sure enough, all ReadyReady's postings are short streams of single-figure numbers, usually at 6 and 12 AM and PM. Presumably they are texted in from mobile phones using SMS.
"Ready Ready" is of course the attention signal of an old (long gone) numbers station, ENIGMA designator E01, family VII (AIDA).