Validating Tag #21603...

2 errors

• No <stroke> tags - at least 1 stroke required
• No <pt> tags - GML requires at least 1 point. This isn't 'EmptyML'

1 warning

• No <time> tags in your <pt> tags! Capturing time data makes things much more interesting.

1 recommendation

• No <uniqueKey> tag - includign a unique device ID of some kind lets users pair their 000000book accounts with your app, e.g. iPhone uuid, MAC address, etc