There are patches for both ways here http://bossgtcentral.com/dm/
or if you download the editors below, they also have a load of patches for both 10 & 10B.
Both units are almost identical, the main difference between the units are,
GT-10 has ...
only guitar amp models,
has autoriff effect and wave synth effect.
a few extra parameters for the guitar synth effect.
a custom amp model per patch.
bass amp models and 4 guitar amp models.
more channel switching options.