If any of you are looking for a good, solid twitter app loaded with features (especially Push), I suggest you look at SimplyTweet. The 2.0 version just came out onto the app store.
Quote:
FEATURES
- Browse CONVERSATIONS - display the reply chain of a message all in 1 screen
- Saved views (create groups of friends, etc)
- Saved notes for accounts
- Multiple accounts support
- HootSuite integration: importing of Twitter accounts from HootSuite
- Swipe-to-reveal shortcuts
- Perform search
- Saved searches
- Photos search
- Favorites support
- Trends support
- View your Friends timeline and Mentions timeline
- View the public Twitter timeline
- Load older tweets and direct messages
- Unread counts display
- Scroll to last read tweet
- Post tweets, RT
- Landscape drafting mode (Tweets and DMs)
- Reply to multiple people at once
- Delete tweets
- Reply to tweets
- Tweetshrink support (both tweets and DM)
- Direct messages, including browsing list recipients and autocompletion
- Saving of drafts
- Support updating of user profile within SimplyTweet
- Follow and un-follow
- Built-in web browser (including landscape mode browsing)
- Instapaper Support
- Configurable image compression for uploads
- Posterous Support (multiple photos with hashtags converted to tags)
- Posterous support for long tweets
- TwitPic support (multiple photos)
- yfrog support (multiple photos)
- Bookmarklet Support
- Option to change the timestamp display format
- Built-in photo viewer
- Address book access when drafting tweet and direct messages
Follow @simplytweet on Twitter.
What's new
- Push notification support for Direct Messages and Mentions
- Added themes
- Performance improvements
- Location services
- URL shortening support in Tweet and DM drafting
- Add support for opening a user profile directly (Go to User)
- Bug fixes
A great thing is that the push notifications are for all direct messages and mentions, not just direct messages and mentions from other SimplyTweet users. I suggest you try the lite version first, which has no ads, just limited features (and no push). If you like it, buy the full version. Another great thing: This dev (MotionObj) ads new features like crazy. You can expect big updates to the app every week or two with great new features.