Powershot G2 - Missing Features?

[mud]

I've found that some digital cameras automatically appear as a removable drive as soon as they are connected to a computer. Owners of a G2 will know that this does not happen with this model.

I'm also interested in changing the startup picture, another feature not supported by this model.

Finally, I would like to take videos that are longer than 30 seconds in length.

Does anyone know if these are the kinds of changes that could be addressed by a firmware update if Canon so wished? Is anyone else also interested in these features?

Thanks.