What happen with the other one ? I think mine is or was as old as yours, it is one of the first GO910, I thought 7 years old now, without the HDD I test it some days ago the GO910 with SD is running for at least 6 hours
on the old battery. One I bought a CF converter, but in my case it won't run, maybe due of a wrong card I realy don't know. It's still available for free who wanna try it also. I bought the SD slot in England
unfortunately they don't send outside the UK, I've a realy good radio friend there which received and forwarded me replacement.
Sure it's more speedy without using the normal dockstation, but what to think about an extra 12GB and when you want to do a test, for yourself or anybody else, just remove de SD card and use a second one.
You switch from one to another card into a split second, realy convenient, another Navcore ? No problem at all. Not satisfied ? Put the old one easy back.