Have decided to cut my losses on the bluetooth obd reader ($30.00) & get the goPoint GL1 cable, by all reports its very stable & I can use any of the Apps on Itunes.
Dont really need another phone & already spent enough on Apps so hopefully all will work out ok.
Cheers - will post an update on performance when I get connected.

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X5 4.4i 2006 sports package, Titanium silver, Sports exhaust with Xpipe, Limo tint, 20" wheels 168's (Black), 25mm H&R wheel spacers& arch flares all round - Loud........

Work in progress -:
Replace BMW Ipod system with DICE - installed but no sound yet??