There are a couple of programmes that allow you too run windows software on a Mac (see Mac questions section on this site). As for the programmes I use the first you can download OTA to your BB This strips out themes etc font VAD PTT and languages and more it releases about 5/10MB. I use BBSAK for wiping and 3rd party app back ups (DM5 for data back up) I always load OS with shrinkAOS. And I use BBSAK to remove preloaded wallpapers/videos etc, just by deleting the cods after I use maxmem I delete it. .461 was 180 at install its now a slender 153MB. That's what I do and it works for me hope this is useful