Well I am very interested in the E-M1 as I am getting a little into time lapse. The E-M1 from what I understand has a built intervalometer and the extra rugged design would make for a nice camera for time lapse. The small size can ride the slider much easier than my a99 and grip. If only it had lower noise so time lapse of stars would be clean. 3200 iso and up is nice to have for astronomical type stuff.