If you have an ICS ROM on your phone you can use this app. I used it and I have no more yellow triangle, super easy. Just make sure you follow the directions and it really is as simple as downloading and installing the apk, then running the app. Reboot and there is no more triangle!
Only for ICS ROMs
"Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it, Almighty God! I know not what course others may take; but as for me, give me liberty or give me death!"
-Patrick Henry, March 23, 1775