A lot of this is remedied by just asking as opposed to assuming. In the past though, many companies that sent out dev devices basically limited their resell mainly because they didn't want the devices to land in the hands of their competitors - thus the NDA's, agreements and so forth. BlackBerry sent me two Dev Alpha devices, I asked them recently if I should prepare to send them back. They said "No need" and left it at that. Now, should I decide to sell it, I'd probably just ask again, but centered around if that's an option.