I've been doing some usability testing on a website I'm developing, using an Android phone and an iPod touch. In both cases, when entering a numeric field (time, distance in metres, etc) I have to take a manual step to change the keyboard layout to show digits. As the app will only accept numeric values in the textbox, I'd like to save the user the inconvenience and tell the device "switch to the number pad for this input".
Is this possible?