Bluetooth or not?, Bluetooth connection or wired? Options

[Waywisher]

Hi,

I'm currently playing with Illustrate's Asset Upnp server sending to both my Samsung Galaxy S3 and (the latest whatever number or generation! - has the rubbish new small connector) Ipad. I want to next connect to my amp, probably via an old Pure ipod dock for the time being.

So.. connecting the ipad to the ipod dock.. I would normally head towards wired connections for stability and making sure interference and speed isn't affected, but with the ipad it would be nice to use a bluetooth dongle (which would also allow the connection of my S3 etc.) - so that the ipad can still be used whilst playing and also not be restricted by the cable.

I've come across this for a wired option.. (it says iphone 5 but I assume it'll work with the ipad too)
http://www.cablejive.com/products/dockBoss...r-iPhone-5.html

And this for a bluetooth option..
http://www.amazon.co.uk/KitSound-Bluetooth...2281&sr=8-4

1) Does anyone have experience of either setup? How do you find it works?
2) Can you suggest any better products?
3) More generally, Can anyone tell me whether the bluetooth route will allow streaming of FLAC?
4) And finally, what about the audio quality?

Thanks in advance!