Morning All... is the iPhone a real PDA as good as say a Trio?

It works for some but not for others.
I don't believe that it is a "true" PDA as there is still some stuff lacking that would be addressed in the future I hope. Things like the ability to save attachments, edit word and excel docs which is avaliable on the treo 680 is not avaliable on the Iphone.
The contacts are less robust on the iphone, and while I like the iphone keyboard, my speed is not as fast as it was on the true keyboard devices.
I love my iphone, but have to admit that if I was still in the sales industry, there is no way I would have been able to use it in place of the blackberry/treo that I did use.

It is not a PDA at the present time and if you are really using all the functions of your Treo you will be disappointed. First one that comes to mind: there is no cut, copy and paste on the iPhone. You also have no Flash or any other media plugins and no way to edit and save Word, Excel or other documents.

The Software Development Kit for the iPhone/Touch, which will allow 3rd Party applications, will be released in "late February" and sometime after that you may see applications that will move the iPhone closer to a PDA.

The iPhone is what it is and there sure are a lot of people who really like them. If you aren't using all the features on the Treo you might be very happy with it.

You need to take a little inventory of the features that you need to keep in your pocket. If as mentioned word and excel are at the top, then this is not the device for you. On the other hand if you're like me and the big stuff is your contacts, calendar events, email, and access to a some important webpages. The iPhone is just the best., plus the mapping and weather functions make it a lot of fun.

The iPhone is not a Palm Treo as we know the Treo today.

The iPhone is a true PDA/Smartphone.

According to the High Level Posters on this forum, the iPhone was not intended to be a Treo or Smartphone, regardless of who the manufacturer might be. To use some words that they have used before, the iPhone is an 'Experience'.

Simple answer. No.

It has all the thing you mention, excellent address book/contacts, iCal calendar and events, good email if you are using imap but Exchange server support is lacking.

NO, the iPhone is NOT a full-featured PDA phone.

The biggest lack is a resident To-Do list which is something most Treo and WM users regularly use; and the inability to sync any notes or memos or documents from your iPhone to your desktop -- the other major PDA feature that makes it a no-go for most business users.

That being said, I have always used top of the line PDA WM smartphones, and I have managed to find workaround for almost all of the problems with the exception of document and spreadsheet use. But that is where my instant-on macbook pro comes in anyway.

Typical PDA features that are also on the iPHone:
Calendar
Contacts
Internet
e-Mail

Basic Typical PDA features that are sorely lacking on iPHone
Tasks/To-Do list that is sync-able
Sync-able Memos
Document reading/writing
Spreadsheet reading/writing

Advanced PDA features missing on iPhone
Media streaming
No flash on internet sets

What are the advanages of a TODO list over using the notes application (or calendar if you want reminders), out of curiosity?

How does the amount of memory determine whether a phone is a PDA? By the way, it's spelled "Treo" with a long "e."

The amount of memory has nothing to do with it.

Smartphone was originally the term for WIndows Mobile phone devices. It has since changed to include Palm phones, WM phones, the Apple iPhone, and Blackberries.

As to the To Do list -- PDA phone power users prefer sync-able To Do lists because you can edit them from your desktop or your phone and the daily syncs keep it all in order -- especially necessary for people who not only manage their own activities during the day but a large number of project activities. To-Do lists are often not just synced on one's own phone, but also distributed with other users through company networks back on the desktop computer.

The notes feature on the iPhone is unsyncable, hence relatively unusable for To Do lists other than your person shopping lists and things like that.

My company uses Treo's and there are nothing but problems (screens are the biggest issues). Personally I would go with a Blackberry with an expandable memory slot. Music, pictures, & contacts can all be added to this.