i am going to create mobile application using LWUIT (of course ) so what the application about
for the first time user can get this app to his mobile by Bluetooth or Wi-Fi then after he install this app he can interact with this app to get some files(audio ,videos ..) from server(by by Bluetooth, Wi-Fi …) and the coverage area for this network has to be as minimum 10 meters
so my questions is
1 this can be or no and if yes then what best way for network(Bluetooth , Wi-Fi …..)
2 is there any open source app like this app.
You usually can't install mobile apps over Bluetooth. That generally requires either publishing over the telephone network or using a local connection such as a USB cable.
Depending on the device, you may have a Bluetooth tcp/ip stack in the phone, in which case, the BlueTooth interface would be just like any other network interface and no Bluetooth-specific programming would be required.
Your biggest problem is your range requirement. I think the maximum reach of Bluetooth is about what your minimum range requirements are. That maximum is regulated in the USA by the Federal Communications Commission, and exceeding it would be a criminal offence. You'd have to check with local laws if you're outside the USA, but most countries have similar restrictions.
Customer surveys are for companies who didn't pay proper attention to begin with.