No need for error checking?
chuckle, good one.
Updated 3-4 times an hour? I'm not talking about small changes here and there, I'm talking about a full database overhaul checking site by site to fix any problems or make any adjustments.
As for scheduling, dude have you ever seen dreamsubmitter? you could schedule submissions for 5 years in advance and have them run 5 times a day at any specific time you set. Don't forget who pioneered that idea.
Now I have never said anything about your program, because to be honest i've never used it. But i know from experience dreamsubmitter kicks some serious ass, and i'm prepared to back it up with my personal gallery stats.
How much did you make personally on galleries last month? Do you even do any galleries yourself? Personally i would feel more comfortable with software that is owned and designed by a successful gallery submitter, rather than someone that doesnt practice what he preaches.
Theres my gallery stats for a 28 day month last month, waiting for yours...