Whats the best type of Personal Digital Assistant (PDA)?

I need to buy the top of range Personal Digital Assistant, but I have no idea which is which. I need one with navigation software for both a Pocket PC and PC laptop, City Select Europe/America/Africa CD with full unlock provides detailed and attractions, navigation features that may include automatic routing,... show more I need to buy the top of range Personal Digital Assistant, but I have no idea which is which. I need one with navigation software for both a Pocket PC and PC laptop, City Select Europe/America/Africa CD with full unlock provides detailed and attractions, navigation features that may include automatic routing, turn-by-turn directions, off route recalculation and voice prompts plus it should be a mobile phone too. Long range Bluetooth wireless communication, and should have magnetic mount or similar.
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