We fully support LinkedIN imports, when you create your resume you have the option of starting from scratch, or importing a LinkedIN Profile. We are planning on implementing Facebook and Github as well.
That is a big page, it took almost 10 seconds to fetch on my ~30Mbps connection. Total size is 4.7MB, with one image at 3MB (!), and a single javascript file at 1.2MB.
You're totally right! I'm compressing the homepage images now to try and reduce the page size, and I'll take a deeper look into cleaning up some of the unused CSS and JS