i think one without the logo are their first batch...you can also check the firmware version if it's v1.3 mean already comes with latest firmware..Quick question - I bought my SX mini from a local B&M on Saturday (didn't mind paying a little higher price to support local business).
I see some of the pics you guys/gals have posted and see the SXmini logo on the bottom of the mod. Mine doesn't have this...Should I be worried?

Well now aren't you the charmer 


