Relevant links then:
Mobile World Congress (MWC) (official site)
The main Microsoft live event starts on Monday, March 2nd, at 8.30 a.m., Barcelona time (GMT+1), i.e. 7.30am in the UK, and will be live streamed here.
There's also the My MWC – Official GSMA MWC App which contains (admittedly mainly for people actually attending):
- mobile registration
- final confirmation code
- full event schedule
- speaker listing
- exhibitor listing
- LinkedIn® enabled networking
- 3-D venue maps
- indoor navigation
Keep an eye on Rafe Blandford's Twitter feed through the week, plus of course AAWP will cover any significant launches or announcements.
The timing of MWC in early March isn't ideal for Microsoft's Windows 10 plans, of course, coming early in the cycle for the phone variant. I don't expect to see a Windows 10-running flagship announced at MWC - the hardware launched next week will be running Lumia Denim, etc. Ditto the non-Microsoft devices - Windows Phone 8.1 Update 1 at most. A Lumia 940 (or 1030 or 1530), running Windows 10 out of the box, would be the subject of an independent event, probably in a May or June timeframe - at earliest.