Choice for VoIP via WiFi?

[jago25_98]

I want to make calls by VoIP on the move.

Which is the best phone for that?

Technically any Windows Mobile phone with WiFi can do it using 3rd party VoIP software and WiFi auto scanning and connection software. But will it do it well?

I also need an camera of similar quality to my K750i.
Please factor in 2nd hand market price.
I spend most of my time in Europe (travel all over), so can I use the n95-3?

[jago25_98]

Instead of going the all-in-one route it's cheaper to separate. With a lot of looking I found this article:
osnews.com/story.php/17077/The-Best-VoIP-SIP-Multi-Function-Devices-Today

But battery life with these options not great:
truphone.com/more_info/what_phones.tru

So after some debate...
N800 = ~£200 + £35 for Navicore
N770 = ~£70 + £35 for Navicore
C500 = ~£40 (have TomTom and bluetooth GPS; not required)

I've decided to get an old C500 and keep my K750i!

This way I get 2nd network, GPS, and VoIP via SJPhone. Not as elegant as N95-3 or N800 with Navicore but £200 cheaper!
If it doesn't work out I can sell and consider the Nokia Internet Tablets.

Hope this helps someone.

Update:
oops, looks like c500 isn't fast enough for SJPhone (need 400mhz...). Back to the drawing board...

E60/E61 since nobody in the world (?!) has hacked a bigger battery to fit an N80 or N95. Then there's the option of faster Windows Mobile devices and SJPhone... what a complicated time!
forums.mobileburn.com/showthread.php?p=156615

or...

N80 only, bigger battery, external charger, Truphone, Navicore downloaded, profile switching to all on when on external power in the car for GPS

( mobilefun.co.uk/product/11175.htm )
( allaboutsymbian.com/archive/t-46680.html )
( forums.mobileburn.com/showthread.php?t=16123&page=2 )