one of my sites went from 0 to 5 in about 2 months or so, but it was that site was for an seo contest and i worked on it day and night..too bad it dropped to a 4 now..
Just concentrate on building backlinks and producing good content. Unless you plan on selling links, whether you get a PR5 within 2 months or 12 months won't make too much difference.
My 1 month old site went from N/A to 3 in the first update. I just built backlinks through forums etc... Just get good backlinks. Anything is possible
This can be achieved in three updated but you have to work more harder and spend some good time and may be money too lol
it's impossible to tell how long it could take you to get to a PR 5, it depends on the quality of your content, the number of do follow links you build from sites with a similar theme to yourself and traffic. Just spend time on creating good content and BUILD BACKLINKS!
It can take few months to many years to get a PR5. It depends on quality of backlinks that you can get for your site. You will need lot of backlinks, especially from high PR pages, to get a PR5.
Doing a Google search will find the formula for backlinks. A quick search found it here: http://netcovered.com/how-many-backlinks-to-get-better-pagerank/ (Not my site, or anyone I know...you can find a similar chart by searching) So, in that formula- If you have a PR3 and want to get to PR4, it is assumed you must have 81 PR4 backlinks.
Everyone is correct. It can't be done overnight anymore. Just keep consistent link building, and more importantly increase your site's popularity. PR will follow, but more importantly, you'll hopefully gain good SERP's and continue to increase your traffic. SERP's get you traffic...PR does not!!!