According to the latest Ubuntu Netbook Remix Blueprint, the Ubuntu community are planning to drop OpenOffice from the default installation of Ubuntu Netbook Edition for the upcoming Lucid Lynx release, atleast for now. Now documents will be opened by default in Google Docs.
The developers have been removing applications that are irrelevant on a netbook. While document editing is clearly a not irrelevant on a netbook, the developers feel that with netbooks being used mostly for internet related works, Google Docs will suffice.