Galaxy SIV release - March 14th in the US.

It's been bearly a year since the release of Samsungs previous flagship device. Is this a new trend? Releasing Galaxy models on a sub annual release cycle? Has the technology just advanced enough to warrent a new device that competes? i.e. Arm Cortex A-15 architecture, 1920 x 1080 screen resolutions?

Will people upgrade from an SIII or will this be reserved for people coming out of contract with an SII? What are your thoughts and will you upgrade?

Personally, i'm going nowhere but nexus devices. I'm waiting for a 1080p, LTE nexus device from Nokia ;), or another manufacturer