Since Bayport in Alameda is a very new development, I wondered how good the mapping services online where at getting updated. I chose three that offer maps and satellite photos: Yahoo Maps (beta), Google Maps and Microsoft’s Live.
All three have the same mapping results in terms of the number of roads within the new development that they know, although Google shows more of them on the hybrid view (both Yahoo and Live can zoom further in when the hybrid mode is disabled, and then they too show the names of the smaller roads).
Google and Live seem to have identical photos for the area. Both show the site before any work had begun on building the houses (probably 3 years ago at least). Yahoo however is a clear winner here since it has photos showing completed houses in the south east corner of the development. The models and the early phases are clearly visible and completed.