Spore 2005 is Spore as it was shown in the demonstrational videos of 2005. Many regard it as "better" than 2008 (finished) Spore, while the more sensible object that Spore 2005 was only ever a video and that Spore 2008 is an actual, playable game of Spore.
The Aquatic StageEdit
One thing that Sporum newcomers often make threads about is the Aquatic Stage, which was shown in the demo of Spore 2005 and the concept art but never finished. These threads generally contain bad grammar and are flamed as soon as they are posted. Individuals who post these threads are generally told to "use the search function", while it is evident that the search function is broken for most (all?) users of the Sporum.