Why won't my iPhone Bluetooth with my iPad

The iPad Bluetooth is mainly for earplugs, speakers and keyboard.

You can also tether via Bluetooth (although WiFi is superior for this) and use certain apps in the app store to transfer photos.

iOS: Understanding Personal Hotspot

http://support.apple.com/kb/HT4517

Use Bluetooth to tether your iPhone, iPod touch, or iPad

http://www.macworld.com/article/1159258/bluetooth_tethering.html

How to Connect an iPad to an iPhone Via Bluetooth Tethering

http://techtips.salon.com/connect-ipad-iphone-via-bluetooth-tethering-25472.html

 Cheers, Tom