Does this wordpress plugin exist...
 

Say for example I have 25 blogs and on each one I want there to be a notification in the top right corner column each time any one of those blogs gets an update. I'd just want a basic thumb and maybe a quick 15-25 word description. Is there any plugin where I can just post the info once and it would be copied across all the blogs?

I know I could use a twitter plugin but this doesn't have thumb capability as far as I know.

Any ideas?

Nope. You need a custom solution.