I have tons of suggestions for you and one of the most urgent (for me) is to be able to have a week view i Dejacalendar.

As it is now I have to use a different calendar (Jorte or Calendar Pad) to see a full week of meetings, which in my mind is essential when you work.

So please, please, please add a week view so that I can see what my appointments are for the entire week.
When you do, make sure to add week numbers to the view and the ability to easily go to future or pas weeks via an month grid calendar or something like that.

Check out the above mentioned calendars for inspiration.

and of course, thank you for your time and effort in becoming the best android calendar!!!

This is how it could look like: