An order without mandatory fields

Today I have got received an order, what basically is not possible - it was submitted without mandatory fields

There is only one item, but it has missing Name, address, email neither IP address.

My question is: how it is possible to submit such an order?

Did you find an answer for this? It happened to one of my carts today also.

I have seen this too, but was able to track it down by reviewing my raw logs with an external program I use and traced it to a visitor using a Blackberry; this has happened twice and each time it is someone using a mobile device.

I am not sure what happens when using a mobile device with the cart but something is causing an issue.

This may not explain all of it but I would review the raw logs.