I understand that removing the branding of Time.ly will be an option in the future for a certain tier or tier(s). If this is a significant business driver, I recommend thinking about an affiliate program and giving those with the branding removal option a chance to opt-in and be rewarded for the traffic.
When it comes time to remove branding, I have noticed it on the following:
1. Embedded Page
2. Custom Branded Domain Page
3. 404 Error Page
4. "Event synced from here"
6. Account and account creation pages (lower left hand corner and in the navigation)
7. Event submission page (lower left hand corner)