Just known Samsung support RTL for Samsung android device:
http://developer.samsung.com/remotetestlab/rtlDeviceList.action

[Question]
Anyone known other free RTL for other mobile device as HTC, LG, … etc
UPDATE2: [08/07/2011] Thanks denis.solonenko
1.LG Mobile: http://developer.lgmobile.com/lge.mdn.sup.retrieveVirtualDevLab.dev
2.Motorola Mobile: http://developer.motorola.com/testing/motoready/
3.Sony Mobile: https://remotedevicelab.sonymobile.com/
In addition to the Samsung, LG, and Motorola links you already posted, I just found a service by Perfecto Mobile that has a free trial. And, since I’m making a list, here’s a service by DeviceAnywhere that’s not free.
Of course, there are many companies that will test your apps for you, but I thought Duarlander was neat because it was comunity-based. And, if you’re looking for cheap testing, TestingAndroid claims to test for $19.
These are just some free/cheap options, mostly where you do your own testing. Obviously there are many big companies out there that would love to “work with you” on testing (for a price).