Does having a lot Views in an app impact system resources in any way? Or is there any other practical limit on number of Views in an app? I've got an app with over 100 Views in it, so... just wondering.
There is no limit on the number of views. However the more views you have the slower it will take to create your activity.
If you have many labels, you can use a Canvas and draw the text instead.
The TableView which is a custom view can use many labels (tested with more than 1000) and it works pretty quick.
I don't recommend you to do any change until you see that it runs slow on a real device.