There are many forums out there for Blackberry and Iphone, many of which provide tutorials, tips and help with blackberrys and iphone, here are my favourite blogs for blackberry and iphone,
Blackberry:
Crackberry - My favourite blackberry blog , updated daily with latest blackberry news and tips.
Inside blackberry - This blog is also regularly updated with RIM and blackberry news.
Iphone:
i4iphones - i4iphones is the best iphone forum that I have come across, the forum has everything you need to know about iphone and iphone optimized content aswell.
Modmyi - Mod my I is also an excellent iphone forum that has many tutorials on jailbreaking and other iphone tricks.
