I am a mobile worker (I am not a geek :D) … I can blonk myself in any cafe… as long as there is “working” power socket and wifi access. However, this is quite a challenge… although I did map out some of the laptop friendly cafes. 
Today, Jerm introduce us to a cafe that is what all mobile workers look for… free wifi, power supply (enuff sockets for each of the patron… no need to target/fight for the favorite table near a wall socket) and food. It’s Geek Terminal @ Market Street. Its tagline is Empowered by Technology. Inspire to Achieve. 
Pretty neat place with affordable eats. The cafe dish out snacks, main course and desserts. There is also set menu too!
A very conducive place to have meetings outside of office and even small events or even a quiet spot to do work in town They even provide photocopying and faxing service.. not to mention charging of “drained” handphones too at an affordable price.
Here’s some shots I took in cafe.
For more info, check out their website
55 Market Street, #01-01, Singapore 048941 (Opps Golden Shoe Carpark)
