Unfamiliar icon

[lady_grae]

There's a new icon appearing on my status bar that I've never seen before. I'm on vacation in an area with minimal signal, so I suspect it has some thing to do with that. In between the wi-fi / 3-g icon and the signal strength icon there is sometimes a gray triangle. It's the same color s the darker signal strength bars (the ones that indicate no signal), and there is nothing inside it - no "!" or lightning boot. I can't find any sort of icon glossary on my phone, so I hope someone here can tell me what this triangle means. Thanks!

 

[bosshaug12]

Usually a triangle next to the signal bars indicates that you are roaming.