With the PS3, Sony did a very good job on system security. It may be hacked now, but it took an enternity (in hacking time) to do this. However, with the PS3 compromised and with Android being the main OS, will NGP hold up for as long? Nearly as long?
3DS certainly hasn't lasted very long, if you believe the claims of R4 and acecard, but (then again) security has never been Nintendo's strong suit.