Ice Cream Sandwich is now running on 7.1% of all Android devices  according to the Android Developers website on June 1, that 

Google’s Ice Cream Sandwich is now running on 7.1% of all Android devices. It has more than doubled since last April when it was reported that only 2.9% of Android devices were running ICS.

While the ICS software user base is expanding. There are problems brewing for the OS. It appears that many of the older  and lower end devices are not able to run ICS, due to the hardware of these devices not being able to cope with the newer requirements. In fact the adoption rate of Gingerbread (Android 2.3) has increased by 1.3 percent amongst older and lower end devices over the last few months alongside the growth of ICS. The Android Developers  website goes on to say that Froyo (2.2) and Gingerbread (2.3) are running on as much as 84.1% of Android devices. ICS has a long way to go, before it  becomes a major player within the Androids eco system. This will not help Google’s fragmentation issue which appears to be growing day by day.

On a more positive note most of Google’s Android high end and mid end devices are now receiving or have received the new OS update.  Samsung devices such as the,Galaxy Tab,  Galaxy S2 LTE, and the Galaxy Note have all received Android 4.0 aka ICS. The Galaxy S3 even now coming with ICS.

Sony has now updated most of it’s high end and mid end Xperia range phones with the exception the Sony Xperia Play, which will not be getting it, due to hardware issues.

Htc has plans to rollout ICS soon to its high end devices such as the EVO 3D, Incredible S, Sensation XL, Desire S and the Desire  HD.

Other manufactures such as LG, Asus and Viewsonic are planing soon to implement ICS.