Apple’s highly anticipated iPhone OS 4 is likely to be available by June 22. The new software allows multi-tasking on iPhone and iPad with users able to stream songs from the web while they check emails. Nifty customization features include folder management and unified inbox. The software integrates the iPad ebook reader. However, support for flash is yet to be included and if the ongoing spat between Steve Jobs and Adobe executives is any indication, it may never happen.