It's an ASUS eeePC 1015PEM. Unfortunately I don't think they sell them anymore. They've since upgraded the processor to an 1.66GHz N550 which performs better on youtube, but I've heard it gets 25% less battery life.
I have a similarly pleased experience with my Asus 1215N (1366×768 screen), which I got for around $300 new (good bargain).
It has basically two drawbacks for me: battery life isn't amazing (roughly 4 hours of active use), and I'm sure a dedicated reader would be better for reading high-res PDFs.
Oh well, I can write code in vim on my eeePC, and you can't say that about an iPad.
The Samsung I have will do it, but it is weird ... like bitmapped, which makes it unusable.
If yours does, can you share the model you bought? Thanks!