For a complete review of an early version of Stargate (with original firmware, soon to be updated), you can read this one on the respected Maxconsole.com website:
Logic Sunrise is probably the most respected French language website in the mod & hack field.
Here is their review of the Stargate 3DS.
Vive le Stargate!
Spanish review on world famous Elotrolado.net:
And Japanese review from re-doing: