So, I got my phone unlocked, and yes, after about 12 hours or so, the data started working. But good-grief it's friggin' slow.
Is there some trick to get decent data speeds on T-Mobile network?
Network Settings - GSM/UMTS
used the second APN from the link above
I'm getting an EDGE network connection voice, sms and data is working, but I'm only getting about 10K/s downloads from the market, and it's almost to the point that the data is so slow, facebook can't update! argh....
The trick is, there is no trick. The HTC Droid incredible 2 is a dual banded phone as you know. The thing is, although it is a GSM/CDMA phone the GSM band in the phone is 900/2100mhz and T-Mobile runs their data on 1700mhz so getting 3g is not possible. I guess it is safe to say you have edge which sadly, is the fastest you will get unless you are connected to Wi-Fi or mobile hot spot. Edge is still good for GPS which is all you would need it for really unless you stream music, and in that case just put the music on your SD card and your good.
Network: CDMA 800/1900MHz + UMTS/HSPA 900/2100MHz + GSM/GPRS/EDGE 850/900/1800/1900MHz <--- Those are the bands the phone has.
This is from T-mobiles wiki which explains you getting Edge.
The company owns licenses to operate a 1900 MHz GSM (Global System for Mobile Communications) PCS (Personal Communications Service) digital cellular network and a 1700 MHz/2100 MHz UMTS AWS (Advanced Wireless Services) digital cellular network that cover areas of the continental U.S., Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It provides coverage in areas in which it does not own radio frequency spectrum licenses via roaming agreements with other operators of compatible networks.
In addition to its cellular mobile network, the company operates a nationwide Wi-Fi Internet access network under the T-Mobile HotSpots brand. The T-Mobile HotSpots network consists of thousands of Wi-Fi access points installed in businesses, hotels and airports throughout the U.S.
[edit]Cellular network
The company's predecessor, VoiceStream Wireless, began building a regional, 2G, 1900 MHz GSM, circuit switched, digital cellular network in 1994 and first offered service in 1996 in Honolulu, Hawaii, and Salt Lake City, Utah. From that starting point, the network has expanded in size through acquisitions of other cellular-network operators and additional spectrum purchases. The network has expanded in capabilities through the introduction of new technologies. VoiceStream upgraded the 1900 MHz network to include packet switching via General Packet Radio Service (GPRS), then increased packet switched data transmission speeds via Enhanced Data Rates for GSM Evolution (EDGE). In 2006, the company spent US$4.2 billion to purchase 120 D, E or F block 1700 MHz/2100 MHz AWS licenses[23] and began rolling out 3G UMTS services in those frequency bands. Most recent, the company has been upgrading network equipment and back-haul capabilities to enable first HSPA (High Speed Packet Access), then HSPA+ (Evolved HSPA) services in the AWS bands. It is marketing its HSPA+ services as 4G.
http://en.wikipedia.org/wiki/T-Mobile_USA