TouchBistro uses your iPad's Region Format settings and uses the currency associated with the region you selected. To check your Region Format, tap the Settings icon. Tap General. Tap Language & Region. Tap Region and select the region appropriate to your currency. If you've changed your region and TouchBistro is still running, close TouchBistro and restart it for the new currency settings to take effect.
No. You need a Mac Mini with the typical consumer-level OS installed. The TouchBistro uses the Mac Mini in a server like fashion to store your restaurant data and keep all your iPads in sync. However, purchasing the server version of OS X is an unnecessary expense. See this document for complete details about TouchBistro's hardware requirements.
If you need supplies for your Star Micronics printers, TouchBistro would suggest the following:
Thermal - 50 Rolls 80MM - 3.125 Inch Thermal POS Printer Paper 230ft
2 Ply - 50 Rolls of 3inch 2Ply POS Printer Paper
Black & Red Ribbon SP700 - 3 x Star Black & Red Ribbon for SP700 Series Printer
Other TouchBistro compatible supplies