CM6/CM7 currently have it. But seeing as CM6 is almost* not existent for the Optimus V maybe some skilled members can help get this ported over. It has been done for sense based roms and a few others over at xda.
[MOD][PORT][4G Reboot Fix][3/27/11] Power Control Widgets for Sense - 3.70 OTA - xda-developers
Widgetsoid is nice, but it still is not quiet as intergrated as the CM6/CM7 notification power widget. I would love to see it for Aphrodite or RodimusROM.