Wktask has an option to put a battery meter on top like vistahide.
Whats great about Wktask is that it is a task manager too. So you could do away with any other task manager. It also supports skinning of the ok/close button and has the option to show running programs like a pc.
Heres the link for that.
http://www.freewarepocketpc.net/ppc-...v1-1-7-3b.html