Interesting. I actually have Tomtom for GPS on a different SD card, which is related to the reason I don't have the original SD card. Tomtom autoinstalls from the SD card, so I thought it might be that the O2 software installed itself from the SD card provided by O2. I guess that if it's only maps on the SD card then that's not the case, and the new firmware does strip out all the O2 extras, which seems like a peculiar decision to say the least.
Still, it did get me to try the new SPB mobile shell 3, which is what the O2 menu is based on, but nicer. I'm trying to decide whether it's worth the $35 for just a flashy finger driven interface. The weird thing is, it actually might be.