Complex sentence: Because of this, Snow Leopard still remains somewhat popular, despite its lack of continued support, mostly because of its compatibility with running PowerPC-based applications as Rosetta was dropped in Mac OS X Lion.
Split into simpler sentences: Because of this, Snow Leopard still remains somewhat popular, despite its lack of continued support. Mostly because of it's compatibility with running PowerPC-based applications as Rosetta was dropped in Mac OS X Lion.