Microsoft has revealed that its XBox 360 console has sold over 40 million units since its launch at the end of 2005.

According to figures released during the firm's financial earnings, the platform currently has a software attach rate of 8.8 games per-console, resulting in software sales totalling 353.8 million.

In recent months, the system has suffered a sales dip, dropping by 12% compared to the same period last year. From January to th end of March this year, the machine shifted 1.5 million units worldwide.

Microsoft's upcoming motion-based hardware Project Natal is expected to have a bearing on sales when it arrives later this year.