I must confirm that Universal Androot 1.6.2 worked on my LG Ally as a one click root/unroot program. Here is a link. No need for a computer.
Software2Tech.com Android Root Apps: Updated Universal Androot (1.6.2) Beta Released and Available for Download.
Software2Tech.com Android Root Apps: Updated Universal Androot (1.6.2) Beta Released and Available for Download.