Ah, so you assume a console application, not a GUI one (which needs a mouse).
The PSU isn't the issue, the issue is that the R-PI's USB ports are fused with a 100mA fuse, not sure what the SD-card reader needs, when writing the card, but together with the keyboard it -might- be an issue.
actually having just one permanent blob for a single card might be fine for most applications, but I can imagine a linux distro that you sometimes want to run with 32GB of Video RAM, and sometimes with 64 GB, what do you do then, use two different SD-cards?
I also think that the raspberry pi should be self supporting, without adding massive to its cost. A single card writer might be acceptable (adding a few dollars to the cost of the basic setup) but powered USB hubs might be a lot costlier, I'm not taking about myself here, Im talking about second and third world kids.
Console is the way to go. Makes things simpler.
32GB of Video Ram hey ? sometimes 64GB ?
I would love to have that much Video Ram
Chances are when I get my Pi, I'll be swapping between modes a bit so I will probably work up a script to rename the blobs. It will be a shell script, not a GUI program so that it can be run via either GUI or shell.
Note that the 32/64GB whatever allocation is total memory allocated to the GPU- not just frame buffers. So depending on what you want the GPU to do, you need to allocate different amounts. For example, just a frame buffer? 3GB more than enough. H264 decode? Need more? Camera? Need even more.
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Please direct all questions to the forum, I do not do support via PM.