Maschine has emerged as the go to sampler these days. It's an MPC on steroids basically. Check out this cat doing his thing on Maschine.
Mobile beat making is the future. Check out this beat on NanoStudio. MVP Loops offers a vast catalog of sounds for Nanostudio and Intua Beatmaker
Soundsandgear.com reviews the hit product by VIP Loops Platinum Series, Hook City: RnB Edition.