I agree with Mary Anderson's suggestion to have Sheng be listed as a language in Kenya. It may not be developed or standardized due to the dynamic nature of the language but it is worth mention. This will be suggested in the next review process of the Ethnologue. Thank you. Manasseh.
I just wondered why Sheng is not listed in your 'languages of Kenya' section. I realise it is an unstandardised Creole, with perhaps little written literature. But it is (I understand) such a growing, vibrant part of urban Kenya life, I'd have thought it is worth a mention.