Finally Got Pr4 today..! google Pr updated Yepppiee.!! http://decentsms.com had pr0 yesterday but now its PR1 check your Pr too
Congrats!. Now get engaged in some extensive link building and by the next PR update, you should have some more rewards... By the way, have you taken any special link building efforts to make your site PR1 or what.?
For gaining higher PR, simply adding to the number of links is no guarantee for the objective, only a handful of high quality and high PR links are enough for jumping the PR score of the sites.