The Summits on the Air program was launched some years back now. My friend, John, G3WGV was one of the instigators of the programme, so I worked him on some of his early activations. That was a while ago and life's changed since then and I haven't really followed SOTA's fortunes so closely.
Another friend, Richard, G4ERP has been activating SOTA summits on 2m SSB recently so I've been making a point of trying to work him, if I have been in the shack over the last few weekends. Great fun. This weekend I worked him from a couple of summits in the Welsh borders. If you haven't looked at the program, do visit the website - do check out the Summit Activation videos!
Down here, we're a fair way from any mountains, so it seems unlikely that I'll be activating many myself!