I finally tried the Tonestack, it has much lower latency than Jamup/BIAS on my iPhone 5. It is almost undetectable. However, it doesn't sound as polished as Jamup/BIAS. I really hope Positive Grid can improve the latency issue, then I will be very happy.
https://soundcloud.com/bojan-tepic/the-noble-message I loved this one^ I wasn't paying attention and just let Soundcloud keep playing and I had no idea it was this app. That's a GREAT tone & playing is excellent man. Sounds like Steve Howe/Lukather/Timmons...all the greats. Bravo.