You know I've never ever had a minidump related to a 2Gb issue.
Having said that I do run Windows 7 64-bit with 12Gb RAM.... but even so the virtual app container is still 32-bit and should expose me to the same issue.
And when I'm doing development work I'm running a) Sins Diplomacy Dev mode, Adobe Photoshop (32 bit version so that Nvidia DDS plugin works) wih 3-6 DDS images open, c) 3DS Max with a scene loaded, d) UltraEdit, e) Firefox with 6 or more tabs used, at least 3 Windows explorer windows and a VLC video playback window.
Never an issue, not once.
So I don't know why some of you have the 2Gb issue. Maybe it's not the 2Gb issue but your graphics card? I mean I'm running a Nvidia GTX 280.