After a very long wait (for which I apologise), the Material version of 8sms is finally here ... albeit only as a BETA for now.
The Material theme of 8sms should work natively on Android Lollipop devices. For older devices (Android Jelly Bean and KitKat), full Material is not available so there's a compatibility layer which gives about 80-90% of Material.
It turns out that 88sms is not a good name for an app. Whilst 88 is a lucky number in some cultures, it is reviled in others. Hence, the choice of 88sms as a name was unfortunate and more research should have been done.
Accordingly, the app 88sms has been renamed to 8sms. This new name should be more palatable to everyone and yet retain some continuity and resemblance to the old name.
To keep with this new name, the website has moved from http://88s.ms to http://8s.ms. Email addresses have also moved from the @88s.ms domain to @8s.ms. Please update your references accordingly.