iPod touch Multiple Exchange accounts not possible on the touch?

[skiltrip]

On my iPhone 4, I was able to set up two Exchange email accounts, but I am not able to do that on the iPod touch running OS 3.1.3. It tells me "Only one Exchange Activesync account can be configured".

Is this a limitation of the iPod touch, or is it a limitation of OS 3.1.3?

 

[Code.Red]

I believe multiple Exchange accounts was added in iOS4.