Whenever I hear about the latest and greatest tablet under $100, I get a little bit sad inside. It's sort of like that feeling you get when you see a 3-legged dog - your heart is mildly warmed by its perseverance, but the rest of you would much rather look away and think about something a little less... depressing.
Datawind's $50 (2499INR) Aakash tablet is a 2-legged dog. It's powered by a 366MHz ARM11 CPU - a processor architecture released a decade ago. It has a 7", 800x480 resistive touchscreen display. 256MB of RAM is under the hood, an amount I didn't even know was possible to run Android 2.2 on (yes, that's a bit of sarcasm - I know it's possible).