Some have reacted
to Apple's WWDC announcements as a threat to smaller services like Dropbox, Things, Instapaper, and others. Instead, I think the announcements could be great news for them.
Apple's decision to put tasks, read-later and cloud services, among others, directly into iOS acknowledges and validates
that these are no longer niche services. Though these services will now face some serious competition directly from Apple, they'll also benefit from Apple's decision to bring these classes
of services — cloud storage, tasks, and read-it-later — to the mass market. With Apple's weight (i.e. marketing dollars spent educating consumers) behind them, these services ought to all benefit from a higher adoption rate. They may lose market share, but as long as they continue to make great products, they'll have many new customers.
For that, I think Marco
is right to be "tentatively optimistic."