We climbed Pokhalde in March 2004. We walked up from Dingboche and established an attack camp at around 5,400m on the South-East side of the peak. From there we climbed Pokhalde and walked down to Chukung on the way to Island Peak in time for supper!
The down side of this route is the long walk in from Dingboche which climbs almost 1000m to establish the high camp. It's very tiring and temperatures were around minus ten in camp. You need to be well acclimatised as the climb to high camp is well above recommended levels for one day.