Most interestingly, new Trojans now outweigh viruses and worms by 4:1, compared to 2:1 in the first half of 2005. In addition, the continued dominance of Windows-based threats has prompted Sophos to suggest that many home users should consider switching to Apple Macs, to shield themselves from the malware onslaught.You can read it over here.
Findings show that the most widespread threat from January to date is the Sober-Z worm, which, at its peak, accounted for one in every thirteen emails. This worm's dominance is evidence of trends moving away from email virus attacks, since Sober-Z maintains a monopoly despite having stopped spreading on 6 January 2006. Further reinforcing this, only one in every 91 of all emails were viral so far this year, compared with one in every 35 for the same period in 2005.
Sophos suggests users to get a Mac

Sophos released new malware statistics and advised users it may be good to switch to Apple Mac computers: