TBH I think there's some confusion about terminology here:
'LIVE' is a bit of a vague term, though I know Davis use it. But exactly what timeframe is it meant to refer to? VP2 stations update their sensors at different intervals, ie:
Wind: every 2.5 secs (approximately)
Temp: every 10 secs
Other sensors: out to every 60 secs or so
These timings are baked into how the ISS firmware works and are unlikely to change I would have thought. And there's no point in a display updating more often than new readings might be available. The other aspect is that weather parameters really don't change that much from one minute to the next, with the single exception of wind gust data. (Rainfall is debatable, but Davis have obviously decided to include in the fast-updating WLL UDP broadcasts, despite the reading only updating every 20 secs, but which still provides for rainfall rates of up to 1.8"/hr as individual tips).
So with WLL as the data source the Weatherlink browser 'app' and the phone app away from home update every minute, which I would argue is fine for everything apart from wind (and maybe rain during a downpour).
The smartphone app at home should give genuinely live wind (and FWIW rain) with updates every 2.5 secs. But the browser 'app' (and AFAIAA) does not yet give live wind in this same sense. This is the bit that I suspect that Davis are referring to, ie bringing live wind (and rain) to the browser 'app' (when used in the local network).
(To repeat, wind and rain are the only 'live' readings that are pushed from WLL, all other readings are pushed to wl.com once a minute or can be pulled locally from the WLL on demand within reason, but the 1-minute rule still applies here AFAIK and I wouldn't expect that to change.)
