Since this is a popular question we get, I thought I would post an update.
With the release of Onboard Rules, you have complete control of push messaging. You can push analog values and digital states on the same channel. Before this release you could not do both.
Under Action >> Add Push Update Rule
You can now do any of the following on each channel.
Analog Input (Push on Condition)
Analog Input (Push at Interval)
Digital Input (Push on State Change)
Digital Input (Push at Interval)
Pulse Count (Push at Limit)
Pulse Count (Push at Interval)
Pulse Count (Push at Interval and Reset Count)