I checked the known issue tool for that device about the update, Telenav issue isn’t related to the Gingerbread update. I would say turn off the Wi-Fi(menu-settings-wireless &network-turn off Wi-Fi) power cycle and update profile and check if your GPS Navigation is working or not.
As far as memory issue on the device, I would suggest you to delete couple of Apps, Emails and, power cycle the device and then complete Sprint Football Live update and re-download apps to your phone.
Let me know.
Tried using Telenav today and keep getting "Telenav GPS Navigation cannot generate a route at this time. Please try again." What would cause this? It worked fine once today when I was trying to figure out how long it would take me to get somewhere. But then when I was actually ready to take my trip it didn't work. Hope this isn't related to the Gingerbread update. I'm using an LG Optimus S.
Also I am having a problem with Sprint Football Live. It says there is an application update but I keep getting message that the phone doesn't have room for the update. It should have more than enough. Anyway, why can't I just skip the update so that I can use the app? I don't download a lot of stuff on my phone so I don't know why the update doesn't complete.
Is there a way that I can move stuff to the SD card? Some apps doesn't give me the option to move to SD card. Is there a way I can work around that and get things moved. That would free up some room.