Default Windows Mobile 6.5 Navigation App?

Looking for Windows Mobile 6.5 Navigation App. As many of you know Sprint has taken its navigation off its data plans. I have unlimited data. But now I dont have navigation. Bing maps no longer works and I'm really not sure where to turn. My HTC Trouch Pro 2 works fine and because it does everything I need a phone to do, except now navigation, why should I buy a newer phone?

So, what nav apps can I get for my windows mobile 6.5 phone?
Thanks.