[8125, K-JAM, P4300, MDA Vario General] shoey5:
I've tried pretty much all of them, since your posting in the Wizard forum I'm assuming that's what you'll be using it on so here is my comments. Keep in mind these comments are based on my experiences using these programs on my K-Jam in North America as well.

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TomTom - Not the prettiest but still the one to beat for a number of reasons.

Pro

Streat names are very readable while navigating.

Very Finger Friendly Interface makes it very quick to Use in car

Very clear and good clear Voice Guidance

Prediction makes movement smooth

Very Fast

Cons

Doesn't show what street you're on

Have to Select City before Street, can be tedious if you don't know the city the street is in.

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IGO - Has the potential to overtake TomTom as my primary choice

Pros

Street Names semi-readable, could be better while navigating

Very pretty and fast Navigation display

Shows what street your own

Very good clear Voice Guidance

Don't have to enter City to find Street

Prediction makes movement smooth

Good Rerouting if you miss a turn

Cons

Could be more finger friendly

Blue Status Bubbles for Battery, Map mode ect get in the way of the freaking street names and I couldn't find a way to turn them off

Street Names should be more readable

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Iguidance 3.0 - I had a love hate releation with these one, has potential but still needs work

Pros

Don't have to enter City before Entering Street

Very Detailed Maps and can install just maps you want to save space

Probably the best in terms of decent routes and map detail in North America

Cons

Jumps in and out of Full Scren very annoying

No Prediction, jerky movement is annoying

Street Names while navigating aren't very readable

Voice Navigation pauses between works very annoying

Program switches display when time to do something, useful to know something is happening but that's what voice promts are for, it's annoying.

Navigon M5 - This one has potention but no street names on 3D map, slow and buggy

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Pros

Excellent Clear Voice Prompts while navigating

Beautiful Maps and Interface

Cons

Have to Select City before entering Street

Not as Finger Friendly

Looks the best but it's also the slowest because of it, too slow

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Route 66 - This is a TomTom wannabee, looks kind of like TomTom, does a few things better but overall still needs work.

Pros

Prediction makes for smoother movement while navigating

Clean Interface and very fast

Good Clear Voice Prompts while navigating

Query style street finding input but helps to enter City

Cons

Not as finger friendly as it could be

Finding a street even with it's unique method can be frustrating sometimes

Mapopolis, Pocket Streets and any other programs that use GPS

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- They can do the job but you can find much better choices

Conclusion

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If you're going to go for one, I'd go for either TomTom 6 or IGO. I'd say these two are the best, especially on the K-Jam in terms of finger friendly, readablility when it's mounted in your car, voice promts, speed and smoothness. As far as Traffic rerouting ect, depends on the area you're using it in, for example most don't really do North America yet.

If you're going to decide on one, think about all the things you want it to do. I'd base my decisions on things like

Traffic Rerouting - if you want that

Prediction for Smoothness - If the jerky movement would bother you

Finger Friendly - If you want to enter a route while the unit is mounted

Quality of Voice Prompting - Enough, not enough, clear ect.

Does it display street names in 3D mode if you like that and more importantly are they readable.

Can you find streets and route between cities without problems (if you cross a lot of cities)