Q: Need help with blue tooth on ipad

How Bluetooth Works

http://electronics.howstuffworks.com/bluetooth.htm

iOS: Supported Bluetooth profiles

http://support.apple.com/kb/ht3647

iOS: How to troubleshoot Bluetooth connections

http://support.apple.com/kb/TS4562

You can connect multiple bluetooth devices, like a keyboard and headphones. However, not two that use audio. That's because the audio channel over A2DP can only play to one device at a time.  Its a limitation of the audio feed via bluetooth - there is no split or simultaneous feed to multiple devices.  A2DP is a uni-directional 2 channel (ie. stereo) audio feed only.

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