........because it is poo.
I have used an SPV C500 for the last 18 months (Windows powered smartphone) but since the latest upgrade to that series is only iterative (no 3G for instance) I thought I would try the N70. What a mistake!
Specific problems I have had are:
1) My GOD it is sssssllllllllooooooowwwwwwwwwwww. The worst offender was the web browser. Visited a page I go to a lot on my C500, which takes ages to load over GPRS but displays instantly, using the N70 which downloaded the data instantly but then took about 2 minutes actually showing the page. However, it was generally very slow to transition between apps. Rubbish.
2) CallerID didn't work properly. My contacts were synced from Outlook but most numbers wouldn't ID - I would just get the number flashing up. Except the missed call list shown from the Orange Home Page COULD identify the call, saying Mr X - missed call at, but then if I went actually in to the missed call app then it was just the number NOT the name. Can only be a software error. I checked ones that did work against ones that didn't and there was no difference in the number format, name format, type of call, caller group, etc, etc its just some would ID and others wouldn't. Rubbish.
3) In Network connection you can only select Dual or GSM NOT UMTS only, which HAS to be a revenue thing. I have a 3G only data package so by forcing me to use Dual when my 3G signal dips rather than me not having connectivity it will automatically pickup using GPRS, which is billed at something like �4/Mb out of contract. You don't have to have this happen very often to clock up a huge bill.
4) You can't change the Home Page from the Orange portal. Or at least I couldn't figure out how to. I tried manually redefining the home page, selecting 'use current page' option, deleting oragne world and various methods. And still as soon as I open Home from the Home key, Web by pressing and holding 0 or by going into menu-Web it would open the Orange portal. Again a revenue stream thing - it just so happens to have about 200k of data on that home page, it is even 40kb with image loading turned off.
5) You can't remap the Home key. I can get to the internet by pressing and holding 0 for 1 second, why do I need another key? I would rather have instant access to my contact for instance rather than having to press down-right-click.
6) You can't search your contacts using T9. Everywhere else on the phone you can change the dictionary but not here. In fact mine defaulted to T9 for INPUTTING contacts which I really don't want, but at least you can change that.
It is a shame because there are things I really DID like - the connectivity to a PC is SO much easier than using Activesync. For instance people can spend days just getting syncing via BT working on activesync (and it can still be intermittent) and with the Nokia PCSuite it took just a few seconds. The sync function itself is painfully slow though and unacceptable since this has been a problem for at least 4 years. Setting up a modem is also a hassle under Activesync, but dead easy with the Nokia. The camera is also useable on the Nokia, unlike the Windows equivalents, which is nice. But other than that it was a completely underwhelming experience.
I have no idea what the N70 is like with Nokia firmware, or other operators, but it is complete shash on Orange. If you think this phone is good do yourself a favour and get a Windows Smartphone based phone - it is streets ahead.