The Asus Eee PC S101 may be super thin compared to earlier Eee PC models. But it’s also super hard to upgrade (at least when compared with most earlier Eee PCs).
Laptop Magazine pried off the access panel of their review unit and saw a RAM access slot. And that’s about it. If you want to replace the solid state disk with a hard drive, or a faster or higher capacity SSD, it looks like you’ll have to pry off the keyboard because there’s no access to the SSD from the easy access panel, or even by undoing all the screws on the back of the unit.
Oh, and as for that RAM upgrade? It turns out that if you replace the included SODIMM with a 2GB stick, the machine still seems to only recognize 1GB. It’s not clear if this is due to a limitation in the BIOS or something else. But it does mean that the most expensive Eee PC model Asus has to offer is also the most difficult to upgrade.