Once installed, the app would send a text message to a premium-rate number he set up and collect small sums of money. The virus would also send him log on IDs and passwords to gaming and gambling sites.
Once arrested, he admitted his crimes and told authorities he was not motivated by greed. Rather, he said he simply loves computers and wants to be a software developer. He has no formal training or education but is reported to be quite smart. Of course, given he let these scam apps go on for a year and the amount of money collected during that time, it is quite difficult to accept that money was not a factor.