I like it. A few suggestions though:
1) Warn people that they will need to login to Twitter to use the service. If my timeline is public, why do I need to provide my twitter credentials? Shouldn't my username be enough
2) Don't load so many stories at once. Maybe 20 or 30 at a time or for the last week, etc...
Anyway, thoughts in the first 30 seconds of use.
Good luck and keep us posted,