Yes, I've got a Koobe Junior. I bought it last year, but it was in the market since 2009 I think.
When I pressed the key combination you mentioned the version was 1.20 (Feb 23 2010 if it means something).
You can download the latest (which is a 2010.08.17. firmware) from here:
http://www.koobe.hu/download/119 (orange link)
I don't think you will find anything new, but it worth a try.
And I'm the One who has to say thank you.
Best regards!