hi & thank you for this plugin!
I just added the pagination to my posts_in_page-page and noticed it is always in English. Since I am using wordpress in another language, it would be great if you could replace the hardcoded words "Previous" and "Next" by something wordpress-internationalisation can handle. Unfortunately, I'm no Pro, so I just copy&pasted what I found in the theme I use, but I guess that won't work for all themes.
I replaced the english words "Previous" and "Next" in these lines
'.__( '<span class="meta-nav">←</span> Older posts', 'twentytwelve' ).'
'.__( 'Newer posts <span class="meta-nav">→</span>', 'twentytwelve' ).'