Following the normal procedures for a bootable SDHC lands me at minicom with only this to show:

X-Loader 1.4.2 (Jun  4 2010 - 10:10:59)
Unsupported Chip!
X-Loader hangs

Googling for "Overo Tide" returns two hits on twitter and a third in a language in which it just happens to be a phrase in the language.

AJ ONeal