Well, I know this icon can be showed just if you have money on your phone, called prepay or something... I don't know...

For get that icon always showed, you need to do a simple Seem Edit:

1.- Download the Seem 010a_0001 from your phone. I usually use P2k Commander, you can get the lastest version here at s5vi's site.

2.- Open the Seem 010a_0001 with a seem editor, we will use XVI32.

You will see just one box! with "01"

3.- Select that box, and then go to the "Tools Tab" and press "Bit Manipulation"

All the bits need to be disabled!

4.- Press "set" and the Save the file and upload it to your phone.

Now, you will see that icon always!

I don't know if this mod is interesting but I like my home screen with all the DRM icons.

So if you want, do this to your phone.