Mobli released an app for BlackBerry today that attempts to fill the gap left by Instagram not releasing a BlackBerry app. It sort of mixes the ideas of Instagram and Color by letting you share pictures based on your location, subject, or person you are photographing. You also get access to location based filters which is sort of unique allowing you to filter pictures based on your location, event, date, or category. You can then share your creation on Facebook and Twitter.
I just started trying out the app so I cannot speak for it but check out the free Mobli app in App World and let us know what you think!