Graph Paper App for Playbook?
 

I have combed through Blackberry Appworld but I cannot seem to find an app for graph paper for the Blackberry Playbook tablet. I am running the 2.0 operating system on this Playbook.

What I want to do is have a "grid" graph app available for my crochet designs (sort of like one of these cross stitch programs for PCs).

I need to be able to press various squares on a graph grid and have the pressed squares solid-fill with a contrasting color.

Anyone know where I can find or buy this Blackberry Playbook tablet app, if it exists? I would appreciate any information.

Many thanks. Lee Ann