There’s a cute comic up at WPLover that highlights an interesting UI trend: the rise of the speech bubble. If you don’t have a WordPress blog, you may never have seen this UI, but it’s pretty much as the comic strip shows it. In the dashboard UI, there are a series of tabs for common tasks–comment management, etc.–and if something needs your attention on one of those tabs, a “speech bubble” pops up with the number of things you need to address.
What the comic points out is that this makes perfect sense for comments (a speech bubble with the number of comments is a congruent metaphor). But indicating the number of plugins needing updates is a little different–should your WordPress plugins really be talking to you?
I think the first treatment of this concept that I saw was Apple’s new mail count in Mail.app, but they didn’t treat it as a speech bubble (there was no “tail” on the little red badge showing the count). This treatment is probably the more portable UI convention.