I'm not saying that those are incorrect points for you, but:

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In the car I want my phone plugged in to charge it, so why not have audio connected too?

I never plug my phone in in the car. I leave it in my pocket, and I don't answer it because I don't want to fiddle around trying to extract it. If I had a bluetooth headset I could just leave in the car, I could use the phone while still in my pocket.

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For personal networks - I prefer wires - obviates jamming and is way faster

Personal networks? I don't think anyone really advocates Bluetooth for networking; it's just a buzzword. If you're talking about peripherals here, Bluetooth is intended for slow devices, and if you've really got someone trying to jam your GPS connection, you've probably got bigger fish to fry than worrying about wires versus wireless.

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For larger wireless networks - 802.11 with EAP, TKIP, RADIUS and a sensible set of firewalls

Again, no one is really suggesting using Bluetooth for all-purpose networking.

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3G or GPRS for my laptop - uses a PCMCIA card. Why waste my mobile for data calls?

Because you don't live in the US, where mobile wireless connectivity is virtually unobtainable outside of a cell phone. Also, maybe you don't want that PCMCIA antenna sticking out of your laptop, ready to be broken off.

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For keyboard or mouse - having to run on batteries is a pain, why not just have a wire?

So you're complaining about the wirelessness of a wireless technology? Can you never see a reason where having wires is a pain in the ass? Myself, I use Bluetooth for a desktop machine at home. This is because that desk doubles as a paperwork desk. I can just pick up the mouse and keyboard and put them in a drawer while I'm not using them. Having a wire on them limits where I can move them to. Obviously, I could duplicate this with RF, but I've got Bluetooth built in. Why would I want to duplicate that except with a big honking dongle?
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Bitt Faulk