@ JJ
Never heard of the famous "there is no Mai w/o April"? It was when bplan developed the April fix.
I guess non-April Pegasos boards are quite rare (The 1st April fix came in December 2002). Genesi offered a free exchange programme for non April Pegaos boards (I exchanged mine at the Aachen show).
April 1 still had some minor issues, and April 2 followed April 1, but it was expensive and while stable, performance of the aprilized ArticiaS still was rather low, thus bplan dropped the ArticiaS completely and went the Marvell route with the PegasosII. The PegasosII doesn't have any of these probs.