paid app. A tweet from Mobile Nation's Daniel Rubino, who is said to be close to the developers behind this, says that the app will not be free although no price was mentioned. Making the app a paid one might bring it to the attention of Facebook faster and the quality of legal advice that a public company can afford to have on retainer will most likely trump the legal power that the developers behind Instagraph can muster. In other words, you can expect to see an early shutdown of the app once it is launched.
Instagraph's developers claim that despite the hacks, their workaround cannot be blocked. Thanks to a leaked screenshot, it is rumored that Instagram will be coming to Windows Phone in May and an official announcement could put a quick and final end to Instagraph.
source: @Daniel_Rubino, Reddit via WMPoweruser