LG has abandoned their WP7 Customers.
Here is their reply to my inquiry - verbatim, complete with spelling errors (my name is Gerry, not Gerr), random characters, and a religious sign off:
I will remember this when considering a LG products in the future.
Thank you for contacting LG Electronics
Gerr, you have reached LG USA and from what I've been told regarding the LG Quantum there looks to be no update to Windows 7.8.
You're welcome to call and get a second opinion if you like anytime 24/7 toll free at 1-800-243-0000.
Thank you for choosing LG and be blessed this New Year, Gerr!