Can't agree more....there's a real shortage of decent calendar apps for Android that are well integrated into a SINGLE, slick or polished app/widget.
FYI, I'm testing out the paid "Pure Calendar" widget on my Sprint Hero. The only key advantage it seems to have over the native HTC calendar widget is the text-only (sigh) WEEKLY LIST (aka "agenda") of everything in the next seven days. However, it's neither layered nor graphical, so it's not useful for looking for free time slots (i.e., like the Palm Pre's nice layered weekly view is). And I cannot get it to show anything other than the next seven days....cannot move to any week one wants.
Clicking on it will bring up whatever default app one tells it to use for full calendar functionality.
The same guy also has the "Pure Grid Calendar" widget. That has an option to show a monthly view with an "event timeline" that sort of tries to show event length and free time on a given day....not quite as nice as what I was hoping for, but getting there.
In my mind, one almost has to buy BOTH this guy's apps to get an Android calendar that's even close the Pre's....with both of them installed, one can at least see a text listing of the next seven days, and then jump to the other one to get SOME visual idea of free time (anyplace there's no horizontal event timeline is free time...). Much more of a pain than a single app that offers both.
Basically, I want THIS for Android....
http://www.palm.com/us/assets/images/products/phones/detail/pre/gallery/CalendarMonth.jpg
http://www.palm.com/us/assets/images/products/phones/detail/pre/gallery/CalendarWeek.jpg
http://www.palm.com/us/assets/images/products/phones/detail/pre/gallery/CalendarDayAll.jpg
...you can't tell from the month view image, but on the Pre, the shading is slightly colored to go with each calendar one has. Man, what a nice job Palm did on that calendar app...
- Astro