Unless you have a broadband at work or home in Vietnam, until recently, there wasn't much you could do for high speed internet beyond cramming into an overcrowded internet cafe cubicle with outdated machines and browsers. Coupled with the fact that you had none of the personalizations and preferences of your own machine (very few cafes will connect your laptop via ethernet). Now, finally, there is actually a number of cafes where you can sit and work comfortably with wireless access. As I discover more spots, I will add them to this list. (Q. (Quận) is the word for District)

I have divided the list into two categories, Recommended and Others. The criteria for recommended is that you can actually get work done, meaning music isn't blasting and where you can actually hold a conversation without shouting. There are outlets and people who are available to help you configure DNS if necessary. Those falling under "Others" either don't meet this criteria or that I simply have yet to visit them.

HCMC WiFi Cafes

Recommended

Sugar Street Cafe: 8A/A7 Thái Văn Lung, Q.1
Hideaway Cafe: 41/1 Pham Ngọc Thạch, Q.3
Nirvana Cafe: 37 Nguyễn Đình Chiểu, Q.1
La Habana: 6 Cao Bá Quát, Q.1
Y5 cafe: 32/65 Cao Thắng, Q.3

Others

Viet Stop: 80 Nguyễn Thị Minh Khai, Q.1
Chợt Nhớ 2: 262 Nam Kỳ Khởi Nghĩa, Q.3
Index House: 98 Lê Thánh Tôn, Q.1
Yesterday: 35A Nguyễn Đình Chiểu, Q.3
Grammy Coffee: 40B Trần Cao Vân, Q.3
Piano: 17 Hồ Xuân Hương, Q.3
Nhịp Sống Thành Phố: 29 Bà Huyện Thanh Quan, Q.3
Bambu Cafe. 96 Nam Kỳ Khởi Nghĩa, Q.1
Bottom Line. 21B Ton Đuc Thang, Q.1
Spa Cafe. 47 Trần Cao Văn, Q.3
Sozo Cafe. 176 Bui Viên, Q.1
Windows Garden Cafe. 43 Nguyễn Đình Chiểu, Q.1
Yesterday Piano Cafe. 35 Nguyễn Đình Chiểu, Q.1

 * Artist Bertrand Peret at Sugar Street. See his current exhibition at Galerie Quynh.