With Google Drive so close to launch with a free limit of 5GB Google has now upgraded the limit for Google Docs from 1GB to 5GB. This storage limit increase is quite possibly due to the face that the 5GB limit for a free Drive account will be the same. You can however increase your Google Drive storage to 100GB if you have a paid account and when its available.
Google Drive however currently will price out at $0.25 per GB but could of course change at time of it’s release. The current documents available on Google Drive shows that there will be a great integration of Google Docs and Google Drive creating a thorn in the side of Dropbox, Box.net and other Remote storage services.