From Planetary Scale:
Mappity Amsterdam is a complete street level map of the city of Amsterdam for your iPhone or iPod Touch!
The entire map is stored on your iPhone or iPod Touch, so you can quickly orient yourself without worrying about or waiting for a network connection.
Traveling to Amsterdam from another country? Bring your iPhone or iPod Touch with you, keep data roaming off, and stop worrying about excessive roaming charges or finding WiFi hotspots!
The entire map is stored on your iPhone or iPod Touch.
Location crosshairs similar to the built-in Maps app.
Street level map detail for all of Amsterdam.
Custom mapping based on OpenStreetMap data.
On iPod Touch and the original iPhone (with the metal back), a data connection is required to pinpoint your current location. On the iPhone 3G, it should not.
To make sure your phone doesn't use any data while roaming, go into Settings, tap General, tap Network, then slide the Data Roaming slider to "Off".
(Mappity Amsterdam was formerly TapMap Amsterdam.)
What's new in this version:
No new features, just a name change due to a trademark conflict.