@Paul- I don't disagree, just taking this a step further:
You received an alert/ someone reported an issue, then what? It's very helpful to be able to use your phone (even if you're in a meeting, on the road etc.) and with a quick IM/ voice command, check if a machine suffers from a host / network/ storage latency, or perform other queries.
Even better, the user himself can do it (if you allow them) and it does not require you to build a complex management stack.