Tushar,
We can do it. I had increased the size from 200kb to 300kb as I had felt that it would be better as the files can be saved at higher quality.

The only reason I had not increased the pixels beyond 800 is that I was not sure how many people use higher resolution screens. 1024 is doable. However, I feel 1024 in the vertical may pose difficulty in viewing for people. May be people have to use F11 or full sceen mode to view it.

Let me do it and try and see the effect.

Cheers,
Sabyasachi