iphone - iOS5 - Create an App that communicates with other iOSs -

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i start studing ios last week , before go further ask question. when learn how develop ios create app used in restaurant. waiters use ipods take orders per table. there ipad @ cashier same app receive orders per table.

i don't want know how develop app question basic. how can safe orders? locally? , history of transactions(yearly, monthly, etc...), icloud? or other server?

since local wifi network, without need of internet, application can send , receive information directly to/from server inside restaurant. ipad application can read server if there order , show it. ipods send orders server, can store in database (like sql server express, free) , ipad can stay reading there. 2 modes inside same application (send orders per table , receive orders).

no need super server, , no need local storage on ipods , ipads since it's inside wifi local network. it's more simpler local storage , sync framework server or send data between idevices.

with data stored in database, can develop kind of reports, web reports of reports inside application or ap


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