We know it would be unfair to battle Asus Eee PC S101 against Sony Vaio TZ, which is actually a highend ultra-portable. Although the S101 is considered expensive in the netbook world, but it is around $1000 cheaper than the VAIO TZ. The Vaio TZ has strong points like higher resolution screen(1366*768) and steller 7 hour battery life, but S101 has its strong points too. The EEE S101 is slimmer and it has a larger and better trackpad. Although the resolution is netbook-ish (1024 x 600), but then, it will save you a $1000 too!