@Dmitriy for monitoring of industrial processes then there is a requirement for a lot more than 32 virtual pins. Each sensor could have 4 virtual pins (sensor reading, time of reading and a couple of LED's) then 3 or 4 general control pins for the app so it only allows you to monitor around 7 sensors.
You can display around 7 sensors per page (more if you only want the raw data displayed) so 32 virtual pins is quite limiting now. For domestic use then 32 is probably ok but not for industrial / commercial use.
I guess that is why people have been eagerly awaiting the tabs widget.