Just to clarify:
The final karmic ec2 image was generated using 2.6.31.307.6. With Karmic ec2, it is not possible for the user to update their own kernel within ec2. Therefore, this update does not effect the cloud images. However, it is still avaliable in karmic-updates if someone wanted to roll their own image (i suspect this use case is nil).
Just to clarify:
The final karmic ec2 image was generated using 2.6.31.307.6. With Karmic ec2, it is not possible for the user to update their own kernel within ec2. Therefore, this update does not effect the cloud images. However, it is still avaliable in karmic-updates if someone wanted to roll their own image (i suspect this use case is nil).
Thanks.